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popover: Add show/hide transition

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This commit is contained in:
Timm Bäder 2014-10-24 16:58:32 +02:00
parent 7543e7b279
commit 17f48e3a9e
1 changed files with 111 additions and 8 deletions
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119
gtk/gtkpopover.c
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@ -99,8 +99,10 @@
#include "a11y/gtkpopoveraccessible.h"
#include "gtkmenusectionbox.h"
#define TAIL_GAP_WIDTH 24
#define TAIL_HEIGHT 12
#define TAIL_GAP_WIDTH 24
#define TAIL_HEIGHT 12
#define TRANSITION_DIFF 10
#define TRANSITION_DURATION 330 * 1000
#define POS_IS_VERTICAL(p) ((p) == GTK_POS_TOP || (p) == GTK_POS_BOTTOM)
@ -139,6 +141,11 @@ struct _GtkPopoverPrivate
guint button_pressed : 1;
guint apply_shape : 1;
guint grab_notify_blocked : 1;
gint64 start_time;
gint transition_diff;
gint start_transition_diff;
guint tick_id;
};
static GQuark quark_widget_popovers = 0;
@ -160,6 +167,7 @@ gtk_popover_init (GtkPopover *popover)
popover->priv = gtk_popover_get_instance_private (popover);
popover->priv->modal = TRUE;
popover->priv->apply_shape = TRUE;
popover->priv->tick_id = 0;
context = gtk_widget_get_style_context (widget);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_BACKGROUND);
@ -294,6 +302,9 @@ gtk_popover_realize (GtkWidget *widget)
gtk_widget_set_realized (widget, TRUE);
}
static gboolean
window_focus_in (GtkWidget *widget,
GdkEvent *event,
@ -397,7 +408,81 @@ gtk_popover_apply_modality (GtkPopover *popover,
}
}
/* From clutter-easing.c, based on Robert Penner's
* infamous easing equations, MIT license.
*/
static double
ease_out_cubic (double t)
{
double p = t - 1;
return p * p * p + 1;
}
static gboolean
show_animate_cb (GtkWidget *widget,
GdkFrameClock *frame_clock,
gpointer user_data)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
gint64 now = gdk_frame_clock_get_frame_time (frame_clock);
gdouble t;
gboolean hiding = (priv->start_transition_diff < 0);
if (now < (priv->start_time + TRANSITION_DURATION))
t = (now - priv->start_time) / (gdouble) (TRANSITION_DURATION);
else
t = 1.0;
t = ease_out_cubic (t);
if (hiding)
{
priv->transition_diff = (priv->start_transition_diff * t);
gtk_widget_set_opacity (widget, 1.0 - t);
}
else
{
priv->transition_diff = priv->start_transition_diff - (priv->start_transition_diff * t);
gtk_widget_set_opacity (widget, t);
}
gtk_widget_queue_resize (GTK_WIDGET (popover));
if (t >= 1.0)
{
priv->transition_diff = 0;
priv->tick_id = 0;
if (hiding)
{
g_object_notify (G_OBJECT (widget), "visible");
GTK_WIDGET_CLASS (gtk_popover_parent_class)->hide (widget);
}
return FALSE;
}
return TRUE;
}
static void
gtk_popover_start_transition (GtkWidget *widget,
gint transition_diff)
{
GtkPopoverPrivate *priv = GTK_POPOVER (widget)->priv;
priv->start_time = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
priv->start_transition_diff = transition_diff;
if (priv->tick_id == 0)
priv->tick_id = gtk_widget_add_tick_callback (widget, show_animate_cb, widget, NULL);
}
static void
gtk_popover_map (GtkWidget *widget)
{
GtkPopoverPrivate *priv = GTK_POPOVER (widget)->priv;
@ -409,6 +494,8 @@ gtk_popover_map (GtkWidget *widget)
if (priv->modal)
gtk_popover_apply_modality (GTK_POPOVER (widget), TRUE);
gtk_popover_start_transition (widget, TRANSITION_DIFF);
}
static void
@ -574,17 +661,17 @@ gtk_popover_get_gap_coords (GtkPopover *popover,
if (initial_x_out)
*initial_x_out = initial_x;
if (initial_y_out)
*initial_y_out = initial_y;
*initial_y_out = initial_y - priv->transition_diff;
if (tip_x_out)
*tip_x_out = tip_x;
if (tip_y_out)
*tip_y_out = tip_y;
*tip_y_out = tip_y - priv->transition_diff;
if (final_x_out)
*final_x_out = final_x;
if (final_y_out)
*final_y_out = final_y;
*final_y_out = final_y - priv->transition_diff;
if (gap_side_out)
*gap_side_out = gap_side;
@ -624,11 +711,11 @@ gtk_popover_get_rect_coords (GtkPopover *popover,
if (x1_out)
*x1_out = x1;
if (y1_out)
*y1_out = y1;
*y1_out = y1 - priv->transition_diff;
if (x2_out)
*x2_out = x2;
if (y2_out)
*y2_out = y2;
*y2_out = y2 - priv->transition_diff;
}
static void
@ -818,6 +905,7 @@ gtk_popover_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkPopover *popover = GTK_POPOVER (widget);
GtkPopoverPrivate *priv = popover->priv;
GtkStyleContext *context;
GtkAllocation allocation;
GtkWidget *child;
@ -887,7 +975,7 @@ gtk_popover_draw (GtkWidget *widget,
/* Render the arrow background */
gtk_render_background (context, cr,
0, 0,
0, -priv->transition_diff,
allocation.width, allocation.height);
/* Render the border of the arrow tip */
@ -1246,6 +1334,20 @@ gtk_popover_focus (GtkWidget *widget,
return TRUE;
}
static void
gtk_popover_hide (GtkWidget *widget)
{
GtkPopoverPrivate *priv = GTK_POPOVER (widget)->priv;
if (gtk_widget_get_mapped (widget) && priv->tick_id == 0)
{
gtk_popover_start_transition (widget, -TRANSITION_DIFF);
}
else
{
GTK_WIDGET_CLASS (gtk_popover_parent_class)->hide (widget);
}
}
static void
gtk_popover_class_init (GtkPopoverClass *klass)
@ -1272,6 +1374,7 @@ gtk_popover_class_init (GtkPopoverClass *klass)
widget_class->key_press_event = gtk_popover_key_press;
widget_class->grab_focus = gtk_popover_grab_focus;
widget_class->focus = gtk_popover_focus;
widget_class->hide = gtk_popover_hide;
/**
* GtkPopover:relative-to: