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session-item: make WpSiTransition more generic to reuse it in _default_export()

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This commit is contained in:
George Kiagiadakis 2020-03-29 11:17:16 +03:00
parent 1cc2837562
commit b7566793b7
1 changed files with 53 additions and 42 deletions
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95
lib/wp/session-item.c
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@ -16,6 +16,55 @@
#include "error.h"
#include "wpenums.h"
struct _WpSiTransition
{
WpTransition parent;
guint (*get_next_step) (WpSessionItem * self, WpTransition * transition,
guint step);
void (*execute_step) (WpSessionItem * self, WpTransition * transition,
guint step);
};
G_DECLARE_FINAL_TYPE (WpSiTransition, wp_si_transition,
WP, SI_TRANSITION, WpTransition);
G_DEFINE_TYPE (WpSiTransition, wp_si_transition, WP_TYPE_TRANSITION)
static void
wp_si_transition_init (WpSiTransition * transition) {}
static guint
wp_si_transition_get_next_step (WpTransition * transition, guint step)
{
WpSiTransition *self = WP_SI_TRANSITION (transition);
WpSessionItem *item = wp_transition_get_source_object (transition);
g_return_val_if_fail (self->get_next_step, WP_TRANSITION_STEP_ERROR);
step = self->get_next_step (item, transition, step);
g_return_val_if_fail (step == WP_TRANSITION_STEP_NONE || self->execute_step,
WP_TRANSITION_STEP_ERROR);
return step;
}
static void
wp_si_transition_execute_step (WpTransition * transition, guint step)
{
WpSiTransition *self = WP_SI_TRANSITION (transition);
WpSessionItem *item = wp_transition_get_source_object (transition);
self->execute_step (item, transition, step);
}
static void
wp_si_transition_class_init (WpSiTransitionClass * klass)
{
WpTransitionClass *transition_class = (WpTransitionClass *) klass;
transition_class->get_next_step = wp_si_transition_get_next_step;
transition_class->execute_step = wp_si_transition_execute_step;
}
typedef struct _WpSessionItemPrivate WpSessionItemPrivate;
struct _WpSessionItemPrivate
{
@ -312,48 +361,6 @@ wp_session_item_get_configuration (WpSessionItem * self)
return WP_SESSION_ITEM_GET_CLASS (self)->get_configuration (self);
}
typedef WpTransition WpSiTransition;
typedef WpTransitionClass WpSiTransitionClass;
G_DEFINE_TYPE (WpSiTransition, wp_si_transition, WP_TYPE_TRANSITION)
static void
wp_si_transition_init (WpSiTransition * transition) {}
static guint
wp_si_transition_get_next_step (WpTransition * transition, guint step)
{
WpSessionItem *item = wp_transition_get_source_object (transition);
g_return_val_if_fail (
WP_SESSION_ITEM_GET_CLASS (item)->get_next_step,
WP_TRANSITION_STEP_ERROR);
step = WP_SESSION_ITEM_GET_CLASS (item)->get_next_step (item,
transition, step);
g_return_val_if_fail (
step == WP_TRANSITION_STEP_NONE ||
WP_SESSION_ITEM_GET_CLASS (item)->execute_step,
WP_TRANSITION_STEP_ERROR);
return step;
}
static void
wp_si_transition_execute_step (WpTransition * transition, guint step)
{
WpSessionItem *item = wp_transition_get_source_object (transition);
WP_SESSION_ITEM_GET_CLASS (item)->execute_step (item, transition, step);
}
static void
wp_si_transition_class_init (WpSiTransitionClass * klass)
{
WpTransitionClass *transition_class = (WpTransitionClass *) klass;
transition_class->get_next_step = wp_si_transition_get_next_step;
transition_class->execute_step = wp_si_transition_execute_step;
}
static void
on_transition_completed (WpTransition * transition, GParamSpec * pspec,
WpSessionItem * self)
@ -408,6 +415,10 @@ wp_session_item_activate (WpSessionItem * self,
priv->flags |= WP_SI_FLAG_ACTIVATING;
g_signal_emit (self, signals[SIGNAL_FLAGS_CHANGED], 0, priv->flags);
WP_SI_TRANSITION (transition)->get_next_step =
WP_SESSION_ITEM_GET_CLASS (self)->get_next_step;
WP_SI_TRANSITION (transition)->execute_step =
WP_SESSION_ITEM_GET_CLASS (self)->execute_step;
wp_transition_advance (transition);
}