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scalebutton: Add autoscrolling

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Use the smooth autoscrolling that the scale can do,
and at the same time stop using legacy event signals.
This commit is contained in:
Matthias Clasen
2017-12-12 22:21:43 -05:00
parent 05fbd32c4d
commit fa7ef93bc5
1 changed files with 59 additions and 73 deletions
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132
gtk/gtkscalebutton.c
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@@ -49,10 +49,13 @@
#include "gtkpopover.h"
#include "gtkprivate.h"
#include "gtkscale.h"
#include "gtkrangeprivate.h"
#include "gtkbox.h"
#include "gtkwindow.h"
#include "gtkwindowprivate.h"
#include "gtktypebuiltins.h"
#include "gtkgesture.h"
#include "gtkbuttonprivate.h"
#include "gtkintl.h"
#include "a11y/gtkscalebuttonaccessible.h"
@@ -109,6 +112,10 @@ struct _GtkScaleButtonPrivate
GtkOrientation orientation;
GtkOrientation applied_orientation;
guint autoscroll_timeout;
GtkScrollType autoscroll_step;
gboolean autoscrolling;
guint click_id;
gchar **icon_list;
@@ -134,12 +141,6 @@ static void gtk_scale_button_set_orientation_private (GtkScaleButton *button,
static void gtk_scale_button_clicked (GtkButton *button);
static void gtk_scale_button_popup (GtkWidget *widget);
static void gtk_scale_button_popdown (GtkWidget *widget);
static gboolean cb_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data);
static gboolean cb_button_release (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data);
static void cb_button_clicked (GtkWidget *button,
gpointer user_data);
static void gtk_scale_button_update_icon (GtkScaleButton *button);
@@ -328,8 +329,6 @@ gtk_scale_button_class_init (GtkScaleButtonClass *klass)
gtk_widget_class_bind_template_child_private (widget_class, GtkScaleButton, scale);
gtk_widget_class_bind_template_child_private (widget_class, GtkScaleButton, image);
gtk_widget_class_bind_template_callback (widget_class, cb_button_press);
gtk_widget_class_bind_template_callback (widget_class, cb_button_release);
gtk_widget_class_bind_template_callback (widget_class, cb_button_clicked);
gtk_widget_class_bind_template_callback (widget_class, cb_scale_value_changed);
gtk_widget_class_bind_template_callback (widget_class, cb_popup_mapped);
@@ -338,6 +337,38 @@ gtk_scale_button_class_init (GtkScaleButtonClass *klass)
gtk_widget_class_set_css_name (widget_class, I_("button"));
}
static gboolean
start_autoscroll (gpointer data)
{
GtkScaleButton *button = data;
GtkScaleButtonPrivate *priv = gtk_scale_button_get_instance_private (button);
gtk_range_start_autoscroll (GTK_RANGE (priv->scale), priv->autoscroll_step);
priv->autoscrolling = TRUE;
priv->autoscroll_timeout = 0;
return G_SOURCE_REMOVE;
}
static void
button_pressed_cb (GtkGesture *gesture,
int n_press,
double x,
double y,
GtkScaleButton *button)
{
GtkScaleButtonPrivate *priv = gtk_scale_button_get_instance_private (button);
GtkWidget *widget;
widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture));
if (widget == priv->plus_button)
priv->autoscroll_step = GTK_SCROLL_PAGE_FORWARD;
else
priv->autoscroll_step = GTK_SCROLL_PAGE_BACKWARD;
priv->autoscroll_timeout = g_timeout_add (200, start_autoscroll, button);
}
static void
gtk_scale_button_init (GtkScaleButton *button)
{
@@ -367,6 +398,11 @@ gtk_scale_button_init (GtkScaleButton *button)
g_signal_connect (priv->scroll_controller, "scroll",
G_CALLBACK (gtk_scale_button_scroll_controller_scroll),
button);
g_signal_connect (gtk_button_get_gesture (GTK_BUTTON (priv->plus_button)),
"pressed", G_CALLBACK (button_pressed_cb), button);
g_signal_connect (gtk_button_get_gesture (GTK_BUTTON (priv->minus_button)),
"pressed", G_CALLBACK (button_pressed_cb), button);
}
static void
@@ -458,6 +494,9 @@ gtk_scale_button_finalize (GObject *object)
g_object_unref (priv->scroll_controller);
if (priv->autoscroll_timeout)
g_source_remove (priv->autoscroll_timeout);
G_OBJECT_CLASS (gtk_scale_button_parent_class)->finalize (object);
}
@@ -865,69 +904,6 @@ button_click (GtkScaleButton *button,
return can_continue;
}
static gboolean
cb_button_timeout (gpointer user_data)
{
GtkScaleButton *button = GTK_SCALE_BUTTON (user_data);
GtkScaleButtonPrivate *priv = button->priv;
gboolean res;
if (priv->click_id == 0)
return G_SOURCE_REMOVE;
res = button_click (button, priv->active_button);
if (!res)
{
g_source_remove (priv->click_id);
priv->click_id = 0;
}
return res;
}
static gboolean
cb_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data)
{
GtkScaleButton *button = GTK_SCALE_BUTTON (user_data);
GtkScaleButtonPrivate *priv = button->priv;
gint double_click_time;
if (priv->click_id != 0)
g_source_remove (priv->click_id);
priv->active_button = widget;
g_object_get (gtk_widget_get_settings (widget),
"gtk-double-click-time", &double_click_time,
NULL);
priv->click_id = gdk_threads_add_timeout (double_click_time,
cb_button_timeout,
button);
g_source_set_name_by_id (priv->click_id, "[gtk+] cb_button_timeout");
cb_button_timeout (button);
return TRUE;
}
static gboolean
cb_button_release (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data)
{
GtkScaleButton *button = GTK_SCALE_BUTTON (user_data);
GtkScaleButtonPrivate *priv = button->priv;
if (priv->click_id != 0)
{
g_source_remove (priv->click_id);
priv->click_id = 0;
}
return TRUE;
}
static void
cb_button_clicked (GtkWidget *widget,
gpointer user_data)
@@ -935,8 +911,18 @@ cb_button_clicked (GtkWidget *widget,
GtkScaleButton *button = GTK_SCALE_BUTTON (user_data);
GtkScaleButtonPrivate *priv = button->priv;
if (priv->click_id != 0)
return;
if (priv->autoscroll_timeout)
{
g_source_remove (priv->autoscroll_timeout);
priv->autoscroll_timeout = 0;
}
if (priv->autoscrolling)
{
gtk_range_stop_autoscroll (GTK_RANGE (priv->scale));
priv->autoscrolling = FALSE;
return;
}
button_click (button, widget);
}