forked from AuroraMiddleware/gtk
colorswatch: Support touch events
Support long press for customizing, and short press for selecting/activating. This is simpler than the generic press-and-hold support in the multitouch branch; we don't display any feedback, and the timeout is currently hardcoded to 1 second.
This commit is contained in:
Matthias Clasen
parent
88ebe2285f
commit
b43d00fa2a
@ -33,6 +33,15 @@
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#include "a11y/gtkcolorswatchaccessible.h"
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typedef struct {
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GtkWidget *widget;
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GdkEventSequence *sequence;
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guint press_and_hold_id;
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gint start_x;
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gint start_y;
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} GtkPressAndHoldData;
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struct _GtkColorSwatchPrivate
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{
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GdkRGBA color;
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@ -44,6 +53,8 @@ struct _GtkColorSwatchPrivate
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guint selectable : 1;
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GdkWindow *event_window;
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GtkPressAndHoldData *press_and_hold;
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};
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enum
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@ -484,33 +495,119 @@ swatch_button_press (GtkWidget *widget,
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return FALSE;
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}
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static gboolean
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swatch_primary_action (GtkColorSwatch *swatch)
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{
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GtkWidget *widget = (GtkWidget *)swatch;
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GtkStateFlags flags;
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flags = gtk_widget_get_state_flags (widget);
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if (!swatch->priv->has_color)
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{
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g_signal_emit (swatch, signals[ACTIVATE], 0);
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return TRUE;
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}
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else if (swatch->priv->selectable &&
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(flags & GTK_STATE_FLAG_SELECTED) == 0)
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{
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gtk_widget_set_state_flags (widget, GTK_STATE_FLAG_SELECTED, FALSE);
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return TRUE;
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}
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return FALSE;
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}
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static gboolean
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swatch_button_release (GtkWidget *widget,
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GdkEventButton *event)
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{
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GtkColorSwatch *swatch = GTK_COLOR_SWATCH (widget);
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GtkStateFlags flags;
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if (event->button == GDK_BUTTON_PRIMARY &&
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swatch->priv->contains_pointer)
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{
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flags = gtk_widget_get_state_flags (widget);
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if (!swatch->priv->has_color)
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{
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g_signal_emit (swatch, signals[ACTIVATE], 0);
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return TRUE;
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}
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else if (swatch->priv->selectable &&
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(flags & GTK_STATE_FLAG_SELECTED) == 0)
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{
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gtk_widget_set_state_flags (widget, GTK_STATE_FLAG_SELECTED, FALSE);
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return TRUE;
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}
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}
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return swatch_primary_action (swatch);
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return FALSE;
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}
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static void
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swatch_press_and_hold_cancel (GtkWidget *widget,
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GtkPressAndHoldData *data)
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{
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if (data->press_and_hold_id)
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{
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g_source_remove (data->press_and_hold_id);
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data->press_and_hold_id = 0;
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}
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data->sequence = NULL;
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}
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static void
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swatch_press_and_hold_free (GtkPressAndHoldData *data)
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{
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swatch_press_and_hold_cancel (data->widget, data);
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g_slice_free (GtkPressAndHoldData, data);
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}
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static gboolean
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swatch_press_and_hold_action (gpointer data)
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{
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GtkPressAndHoldData *pah = data;
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emit_customize (GTK_COLOR_SWATCH (pah->widget));
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swatch_press_and_hold_cancel (pah->widget, pah);
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return G_SOURCE_REMOVE;
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}
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static gboolean
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swatch_touch (GtkWidget *widget,
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GdkEventTouch *event)
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{
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GtkColorSwatch *swatch = GTK_COLOR_SWATCH (widget);
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GtkPressAndHoldData *data;
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if (!swatch->priv->press_and_hold)
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swatch->priv->press_and_hold = g_slice_new0 (GtkPressAndHoldData);
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data = swatch->priv->press_and_hold;
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/* We're already tracking a different touch, ignore */
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if (data->sequence != NULL && data->sequence != event->sequence)
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return TRUE;
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if (event->type == GDK_TOUCH_BEGIN)
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{
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data->widget = widget;
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data->sequence = event->sequence;
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data->start_x = event->x;
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data->start_y = event->y;
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data->press_and_hold_id =
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gdk_threads_add_timeout (1000, swatch_press_and_hold_action, data);
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}
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else if (event->type == GDK_TOUCH_UPDATE)
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{
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if (gtk_drag_check_threshold (widget,
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data->start_x, data->start_y,
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event->x, event->y))
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swatch_press_and_hold_cancel (widget, data);
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}
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else if (event->type == GDK_TOUCH_END)
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{
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swatch_press_and_hold_cancel (widget, data);
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swatch_primary_action (swatch);
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}
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else if (event->type == GDK_TOUCH_CANCEL)
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{
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swatch_press_and_hold_cancel (widget, data);
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}
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return TRUE;
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}
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static void
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swatch_map (GtkWidget *widget)
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{
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@ -552,10 +649,11 @@ swatch_realize (GtkWidget *widget)
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attributes.height = allocation.height;
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attributes.wclass = GDK_INPUT_ONLY;
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attributes.event_mask = gtk_widget_get_events (widget);
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attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
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GDK_BUTTON_RELEASE_MASK |
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GDK_ENTER_NOTIFY_MASK |
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GDK_LEAVE_NOTIFY_MASK);
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attributes.event_mask |= GDK_BUTTON_PRESS_MASK
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| GDK_BUTTON_RELEASE_MASK
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| GDK_ENTER_NOTIFY_MASK
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| GDK_LEAVE_NOTIFY_MASK
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| GDK_TOUCH_MASK;
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attributes_mask = GDK_WA_X | GDK_WA_Y;
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@ -661,6 +759,8 @@ swatch_finalize (GObject *object)
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GtkColorSwatch *swatch = GTK_COLOR_SWATCH (object);
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g_free (swatch->priv->icon);
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if (swatch->priv->press_and_hold)
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swatch_press_and_hold_free (swatch->priv->press_and_hold);
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G_OBJECT_CLASS (gtk_color_swatch_parent_class)->finalize (object);
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}
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@ -692,6 +792,7 @@ gtk_color_swatch_class_init (GtkColorSwatchClass *class)
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widget_class->map = swatch_map;
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widget_class->unmap = swatch_unmap;
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widget_class->size_allocate = swatch_size_allocate;
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widget_class->touch_event = swatch_touch;
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signals[ACTIVATE] =
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g_signal_new ("activate",
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