From e4283f6d48b98e764b988b43bbc86b9d52e6ec94 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:54:43 +0200 Subject: Adding upstream version 43.9. Signed-off-by: Daniel Baumann --- src/shell-embedded-window.c | 247 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 247 insertions(+) create mode 100644 src/shell-embedded-window.c (limited to 'src/shell-embedded-window.c') diff --git a/src/shell-embedded-window.c b/src/shell-embedded-window.c new file mode 100644 index 0000000..8fd6112 --- /dev/null +++ b/src/shell-embedded-window.c @@ -0,0 +1,247 @@ +/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ + +#include "config.h" + +#include + +#include "shell-embedded-window-private.h" + +/* This type is a subclass of GtkWindow that ties the window to a + * ShellGtkEmbed; the resizing logic is bound to the clutter logic. + * + * The typical usage we might expect is + * + * - ShellEmbeddedWindow is created and filled with content + * - ShellEmbeddedWindow is shown with gtk_widget_show_all() + * - ShellGtkEmbed is created for the ShellEmbeddedWindow + * - actor is added to a stage + * + * The way it works is that the GtkWindow is mapped if and only if both: + * + * - gtk_widget_visible (window) [widget has been shown] + * - Actor is mapped [actor and all parents visible, actor in stage] + */ + +enum { + PROP_0 +}; + +typedef struct _ShellEmbeddedWindowPrivate ShellEmbeddedWindowPrivate; + +struct _ShellEmbeddedWindowPrivate { + ShellGtkEmbed *actor; + + GdkRectangle position; +}; + +G_DEFINE_TYPE_WITH_PRIVATE (ShellEmbeddedWindow, + shell_embedded_window, + GTK_TYPE_WINDOW); + +/* + * The normal gtk_window_show() starts all of the complicated asynchronous + * window resizing code running; we don't want or need any of that. + * Bypassing the normal code does mean that the extra geometry management + * available on GtkWindow: gridding, maximum sizes, etc, is ignored; we + * don't really want that anyways - we just want a way of embedding a + * GtkWidget into a Clutter stage. + */ +static void +shell_embedded_window_show (GtkWidget *widget) +{ + ShellEmbeddedWindow *window = SHELL_EMBEDDED_WINDOW (widget); + ShellEmbeddedWindowPrivate *priv; + GtkWidgetClass *widget_class; + + priv = shell_embedded_window_get_instance_private (window); + + /* Skip GtkWindow, but run the default GtkWidget handling which + * marks the widget visible */ + widget_class = g_type_class_peek (GTK_TYPE_WIDGET); + widget_class->show (widget); + + if (priv->actor) + { + /* Size is 0x0 if the GtkWindow is not shown */ + clutter_actor_queue_relayout (CLUTTER_ACTOR (priv->actor)); + + if (clutter_actor_is_realized (CLUTTER_ACTOR (priv->actor))) + gtk_widget_map (widget); + } +} + +static void +shell_embedded_window_hide (GtkWidget *widget) +{ + ShellEmbeddedWindow *window = SHELL_EMBEDDED_WINDOW (widget); + ShellEmbeddedWindowPrivate *priv; + + priv = shell_embedded_window_get_instance_private (window); + + if (priv->actor) + clutter_actor_queue_relayout (CLUTTER_ACTOR (priv->actor)); + + GTK_WIDGET_CLASS (shell_embedded_window_parent_class)->hide (widget); +} + +static gboolean +shell_embedded_window_configure_event (GtkWidget *widget, + GdkEventConfigure *event) +{ + /* Normally a configure event coming back from X triggers the + * resizing logic inside GtkWindow; we just ignore them + * since we are handling the resizing logic separately. + */ + return FALSE; +} + +static void +shell_embedded_window_check_resize (GtkContainer *container) +{ + ShellEmbeddedWindow *window = SHELL_EMBEDDED_WINDOW (container); + ShellEmbeddedWindowPrivate *priv; + + priv = shell_embedded_window_get_instance_private (window); + + /* Check resize is called when a resize is queued on something + * inside the GtkWindow; we need to make sure that in response + * to this gtk_widget_size_request() and then + * gtk_widget_size_allocate() are called; we defer to the Clutter + * logic and assume it will do the right thing. + */ + if (priv->actor) + clutter_actor_queue_relayout (CLUTTER_ACTOR (priv->actor)); +} + +static GObject * +shell_embedded_window_constructor (GType gtype, + guint n_properties, + GObjectConstructParam *properties) +{ + GObject *object; + GObjectClass *parent_class; + + parent_class = G_OBJECT_CLASS (shell_embedded_window_parent_class); + object = parent_class->constructor (gtype, n_properties, properties); + + /* Setting the resize mode to immediate means that calling queue_resize() + * on a widget within the window will immediately call check_resize() + * to be called, instead of having it queued to an idle. From our perspective, + * this is ideal since we just are going to queue a resize to Clutter's + * idle resize anyways. + */ + g_object_set (object, + "app-paintable", TRUE, + "resize-mode", GTK_RESIZE_IMMEDIATE, + "type", GTK_WINDOW_POPUP, + NULL); + + return object; +} + +static void +shell_embedded_window_class_init (ShellEmbeddedWindowClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); + GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass); + + object_class->constructor = shell_embedded_window_constructor; + + widget_class->show = shell_embedded_window_show; + widget_class->hide = shell_embedded_window_hide; + widget_class->configure_event = shell_embedded_window_configure_event; + + container_class->check_resize = shell_embedded_window_check_resize; +} + +static void +shell_embedded_window_init (ShellEmbeddedWindow *window) +{ +} + +/* + * Private routines called by ShellGtkEmbed + */ + +void +_shell_embedded_window_set_actor (ShellEmbeddedWindow *window, + ShellGtkEmbed *actor) + +{ + ShellEmbeddedWindowPrivate *priv; + + g_return_if_fail (SHELL_IS_EMBEDDED_WINDOW (window)); + + priv = shell_embedded_window_get_instance_private (window); + priv->actor = actor; + + if (actor && + clutter_actor_is_mapped (CLUTTER_ACTOR (actor)) && + gtk_widget_get_visible (GTK_WIDGET (window))) + gtk_widget_map (GTK_WIDGET (window)); +} + +void +_shell_embedded_window_allocate (ShellEmbeddedWindow *window, + int x, + int y, + int width, + int height) +{ + ShellEmbeddedWindowPrivate *priv; + GtkAllocation allocation; + + g_return_if_fail (SHELL_IS_EMBEDDED_WINDOW (window)); + + priv = shell_embedded_window_get_instance_private (window); + + if (priv->position.x == x && + priv->position.y == y && + priv->position.width == width && + priv->position.height == height) + return; + + priv->position.x = x; + priv->position.y = y; + priv->position.width = width; + priv->position.height = height; + + if (gtk_widget_get_realized (GTK_WIDGET (window))) + gdk_window_move_resize (gtk_widget_get_window (GTK_WIDGET (window)), + x, y, width, height); + + allocation.x = 0; + allocation.y = 0; + allocation.width = width; + allocation.height = height; + + gtk_widget_size_allocate (GTK_WIDGET (window), &allocation); +} + +void +_shell_embedded_window_map (ShellEmbeddedWindow *window) +{ + g_return_if_fail (SHELL_IS_EMBEDDED_WINDOW (window)); + + if (gtk_widget_get_visible (GTK_WIDGET (window))) + gtk_widget_map (GTK_WIDGET (window)); +} + +void +_shell_embedded_window_unmap (ShellEmbeddedWindow *window) +{ + g_return_if_fail (SHELL_IS_EMBEDDED_WINDOW (window)); + + gtk_widget_unmap (GTK_WIDGET (window)); +} + +/* + * Public API + */ +GtkWidget * +shell_embedded_window_new (void) +{ + return g_object_new (SHELL_TYPE_EMBEDDED_WINDOW, + NULL); +} -- cgit v1.2.3