541 lines
18 KiB
C
541 lines
18 KiB
C
/*
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* Copyright (C) 2010-2011 Daiki Ueno <ueno@unixuser.org>
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* Copyright (C) 2010-2011 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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/**
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* SECTION:eek-gtk-keyboard
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* @short_description: a #GtkWidget displaying #EekKeyboard
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*/
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#include "config.h"
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#ifdef HAVE_LIBCANBERRA
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#include <canberra-gtk.h>
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#endif
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#include <math.h>
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#include <string.h>
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#include "eek-renderer.h"
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#include "eek-keyboard.h"
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#include "src/symbol.h"
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#include "eek-gtk-keyboard.h"
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enum {
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PROP_0,
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PROP_LAST
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};
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/* since 2.91.5 GDK_DRAWABLE was removed and gdk_cairo_create takes
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GdkWindow as the argument */
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#ifndef GDK_DRAWABLE
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#define GDK_DRAWABLE(x) (x)
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#endif
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typedef struct _EekGtkKeyboardPrivate
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{
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EekRenderer *renderer;
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LevelKeyboard *keyboard;
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GtkCssProvider *css_provider;
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GtkStyleContext *scontext;
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GdkEventSequence *sequence; // unowned reference
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} EekGtkKeyboardPrivate;
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G_DEFINE_TYPE_WITH_PRIVATE (EekGtkKeyboard, eek_gtk_keyboard, GTK_TYPE_DRAWING_AREA)
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static void on_button_pressed (struct squeek_button *button, struct squeek_view *view,
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EekGtkKeyboard *self);
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static void on_button_released (struct squeek_button *button,
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struct squeek_view *view,
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EekGtkKeyboard *self);
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static void render_pressed_button (GtkWidget *widget, struct button_place *place);
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static void render_locked_button (GtkWidget *widget,
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struct button_place *place);
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static void render_released_button (GtkWidget *widget,
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struct squeek_button *button);
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static void
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eek_gtk_keyboard_real_realize (GtkWidget *self)
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{
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gtk_widget_set_events (self,
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GDK_EXPOSURE_MASK |
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GDK_KEY_PRESS_MASK |
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GDK_KEY_RELEASE_MASK |
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GDK_BUTTON_PRESS_MASK |
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GDK_BUTTON_RELEASE_MASK |
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GDK_BUTTON_MOTION_MASK);
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GTK_WIDGET_CLASS (eek_gtk_keyboard_parent_class)->realize (self);
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}
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static gboolean
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eek_gtk_keyboard_real_draw (GtkWidget *self,
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cairo_t *cr)
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{
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EekGtkKeyboardPrivate *priv =
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eek_gtk_keyboard_get_instance_private (EEK_GTK_KEYBOARD (self));
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GtkAllocation allocation;
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gtk_widget_get_allocation (self, &allocation);
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if (!priv->renderer) {
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PangoContext *pcontext = gtk_widget_get_pango_context (self);
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priv->renderer = eek_renderer_new (priv->keyboard, pcontext, priv->scontext);
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eek_renderer_set_allocation_size (priv->renderer,
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allocation.width,
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allocation.height);
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eek_renderer_set_scale_factor (priv->renderer,
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gtk_widget_get_scale_factor (self));
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}
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eek_renderer_render_keyboard (priv->renderer, cr);
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struct squeek_view *view = priv->keyboard->views[priv->keyboard->level];
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/* redraw pressed key */
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const GList *list = priv->keyboard->pressed_buttons;
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for (const GList *head = list; head; head = g_list_next (head)) {
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struct button_place place = eek_keyboard_get_button_by_state(
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view, squeek_button_get_key(head->data)
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);
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render_pressed_button (self, &place);
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}
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/* redraw locked key */
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list = priv->keyboard->locked_buttons;
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for (const GList *head = list; head; head = g_list_next (head)) {
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struct button_place place = eek_keyboard_get_button_by_state(
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view, squeek_button_get_key(
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((EekModifierKey *)head->data)->button
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)
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);
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render_locked_button (self, &place);
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}
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return FALSE;
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}
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static void
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eek_gtk_keyboard_real_size_allocate (GtkWidget *self,
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GtkAllocation *allocation)
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{
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EekGtkKeyboardPrivate *priv =
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eek_gtk_keyboard_get_instance_private (EEK_GTK_KEYBOARD (self));
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if (priv->renderer)
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eek_renderer_set_allocation_size (priv->renderer,
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allocation->width,
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allocation->height);
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GTK_WIDGET_CLASS (eek_gtk_keyboard_parent_class)->
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size_allocate (self, allocation);
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}
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static void depress(EekGtkKeyboard *self,
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gdouble x, gdouble y, guint32 time)
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{
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EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
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struct squeek_view *view = level_keyboard_current(priv->keyboard);
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struct squeek_button *button = eek_renderer_find_button_by_position (priv->renderer, view, x, y);
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if (button) {
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eek_keyboard_press_button(priv->keyboard, button, time);
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on_button_pressed(button, view, self);
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}
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}
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static void drag(EekGtkKeyboard *self,
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gdouble x, gdouble y, guint32 time) {
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EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
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struct squeek_view *view = level_keyboard_current(priv->keyboard);
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struct squeek_button *button = eek_renderer_find_button_by_position (priv->renderer, view, x, y);
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GList *list, *head;
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list = g_list_copy(priv->keyboard->pressed_buttons);
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if (button) {
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gboolean found = FALSE;
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for (head = list; head; head = g_list_next (head)) {
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if (head->data == button) {
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found = TRUE;
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} else {
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eek_keyboard_release_button(priv->keyboard, head->data, time);
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on_button_released(button, view, self);
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}
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}
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g_list_free (list);
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if (!found) {
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eek_keyboard_press_button(priv->keyboard, button, time);
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on_button_pressed(button, view, self);
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}
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} else {
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for (head = list; head; head = g_list_next (head)) {
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eek_keyboard_release_button(priv->keyboard, button, time);
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on_button_released(button, view, self);
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}
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g_list_free (list);
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}
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}
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static void release(EekGtkKeyboard *self, guint32 time) {
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EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
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struct squeek_view *view = level_keyboard_current(priv->keyboard);
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GList *list = g_list_copy(priv->keyboard->pressed_buttons);
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for (GList *head = list; head; head = g_list_next (head)) {
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struct squeek_button *button = head->data;
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eek_keyboard_release_button(priv->keyboard, button, time);
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on_button_released(button, view, self);
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}
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g_list_free (list);
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}
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static gboolean
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eek_gtk_keyboard_real_button_press_event (GtkWidget *self,
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GdkEventButton *event)
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{
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if (event->type == GDK_BUTTON_PRESS && event->button == 1) {
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depress(EEK_GTK_KEYBOARD(self), event->x, event->y, event->time);
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}
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return TRUE;
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}
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// TODO: this belongs more in gtk_keyboard, with a way to find out which key to re-render
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static gboolean
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eek_gtk_keyboard_real_button_release_event (GtkWidget *self,
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GdkEventButton *event)
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{
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if (event->type == GDK_BUTTON_RELEASE && event->button == 1) {
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// TODO: can the event have different coords than the previous move event?
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release(EEK_GTK_KEYBOARD(self), event->time);
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}
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return TRUE;
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}
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static gboolean
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eek_gtk_keyboard_real_motion_notify_event (GtkWidget *self,
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GdkEventMotion *event)
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{
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if (event->state & GDK_BUTTON1_MASK) {
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drag(EEK_GTK_KEYBOARD(self), event->x, event->y, event->time);
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}
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return TRUE;
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}
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// Only one touch stream at a time allowed. Others will be completely ignored.
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static gboolean
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handle_touch_event (GtkWidget *widget,
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GdkEventTouch *event)
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{
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EekGtkKeyboard *self = EEK_GTK_KEYBOARD (widget);
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EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
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if (event->type == GDK_TOUCH_BEGIN) {
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if (priv->sequence) {
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// Ignore second and following touch points
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return FALSE;
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}
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priv->sequence = event->sequence;
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depress(self, event->x, event->y, event->time);
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return TRUE;
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}
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if (priv->sequence != event->sequence) {
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return FALSE;
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}
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if (event->type == GDK_TOUCH_UPDATE) {
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drag(self, event->x, event->y, event->time);
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}
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if (event->type == GDK_TOUCH_END || event->type == GDK_TOUCH_CANCEL) {
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// TODO: can the event have different coords than the previous update event?
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release(self, event->time);
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priv->sequence = NULL;
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}
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return TRUE;
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}
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static void
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eek_gtk_keyboard_real_unmap (GtkWidget *self)
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{
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EekGtkKeyboardPrivate *priv =
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eek_gtk_keyboard_get_instance_private (EEK_GTK_KEYBOARD (self));
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if (priv->keyboard) {
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GList *list, *head;
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/* Make a copy of HEAD before sending "released" signal on
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elements, so that the default handler of
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EekKeyboard::key-released signal can remove elements from its
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internal copy */
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list = g_list_copy(priv->keyboard->pressed_buttons);
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for (head = list; head; head = g_list_next (head)) {
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g_log("squeek", G_LOG_LEVEL_DEBUG, "emit EekKey released");
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g_signal_emit_by_name (head->data, "released");
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}
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g_list_free (list);
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}
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GTK_WIDGET_CLASS (eek_gtk_keyboard_parent_class)->unmap (self);
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}
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static gboolean
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eek_gtk_keyboard_real_query_tooltip (GtkWidget *widget,
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gint x,
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gint y,
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gboolean keyboard_tooltip,
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GtkTooltip *tooltip)
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{
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EekGtkKeyboard *self = EEK_GTK_KEYBOARD (widget);
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EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
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struct squeek_view *view = level_keyboard_current(priv->keyboard);
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struct squeek_button *button = eek_renderer_find_button_by_position (priv->renderer,
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view,
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(gdouble)x,
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(gdouble)y);
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if (button) {
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//struct squeek_symbol *symbol = eek_key_get_symbol_at_index(key, 0, priv->keyboard->level);
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const gchar *text = NULL; // FIXME
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if (text) {
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gtk_tooltip_set_text (tooltip, text);
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return TRUE;
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}
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}
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return FALSE;
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}
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static void
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eek_gtk_keyboard_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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switch (prop_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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eek_gtk_keyboard_dispose (GObject *object)
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{
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EekGtkKeyboard *self = EEK_GTK_KEYBOARD (object);
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EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
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if (priv->renderer) {
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g_object_unref (priv->renderer);
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priv->renderer = NULL;
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}
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if (priv->keyboard) {
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GList *list, *head;
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list = g_list_copy(priv->keyboard->pressed_buttons);
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for (head = list; head; head = g_list_next (head)) {
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g_log("squeek", G_LOG_LEVEL_DEBUG, "emit EekKey pressed");
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g_signal_emit_by_name (head->data, "released", level_keyboard_current(priv->keyboard));
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}
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g_list_free (list);
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priv->keyboard = NULL;
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}
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G_OBJECT_CLASS (eek_gtk_keyboard_parent_class)->dispose (object);
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}
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static void
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eek_gtk_keyboard_class_init (EekGtkKeyboardClass *klass)
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{
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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widget_class->realize = eek_gtk_keyboard_real_realize;
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widget_class->unmap = eek_gtk_keyboard_real_unmap;
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widget_class->draw = eek_gtk_keyboard_real_draw;
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widget_class->size_allocate = eek_gtk_keyboard_real_size_allocate;
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widget_class->button_press_event =
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eek_gtk_keyboard_real_button_press_event;
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widget_class->button_release_event =
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eek_gtk_keyboard_real_button_release_event;
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widget_class->motion_notify_event =
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eek_gtk_keyboard_real_motion_notify_event;
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widget_class->query_tooltip =
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eek_gtk_keyboard_real_query_tooltip;
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widget_class->touch_event = handle_touch_event;
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gobject_class->set_property = eek_gtk_keyboard_set_property;
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gobject_class->dispose = eek_gtk_keyboard_dispose;
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}
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static void
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eek_gtk_keyboard_init (EekGtkKeyboard *self)
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{
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EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
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/* Create a default CSS provider and load a style sheet */
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priv->css_provider = gtk_css_provider_new ();
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gtk_css_provider_load_from_resource (priv->css_provider,
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"/sm/puri/squeekboard/style.css");
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/* Apply the style to the widget */
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priv->scontext = gtk_widget_get_style_context (GTK_WIDGET(self));
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gtk_style_context_add_class (priv->scontext, "keyboard");
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gtk_style_context_add_provider (priv->scontext,
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GTK_STYLE_PROVIDER(priv->css_provider),
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GTK_STYLE_PROVIDER_PRIORITY_USER);
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gtk_style_context_set_state (priv->scontext, GTK_STATE_FLAG_NORMAL);
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}
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/**
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* eek_gtk_keyboard_new:
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* @keyboard: an #EekKeyboard
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*
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* Create a new #GtkWidget displaying @keyboard.
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* Returns: a #GtkWidget
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*/
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GtkWidget *
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eek_gtk_keyboard_new (LevelKeyboard *keyboard)
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{
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EekGtkKeyboard *ret = EEK_GTK_KEYBOARD(g_object_new (EEK_TYPE_GTK_KEYBOARD, NULL));
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EekGtkKeyboardPrivate *priv = (EekGtkKeyboardPrivate*)eek_gtk_keyboard_get_instance_private (ret);
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priv->keyboard = keyboard;
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return GTK_WIDGET(ret);
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}
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static void
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render_pressed_button (GtkWidget *widget,
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struct button_place *place)
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{
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EekGtkKeyboard *self = EEK_GTK_KEYBOARD (widget);
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EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
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GdkWindow *window = gtk_widget_get_window (widget);
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cairo_region_t *region = gdk_window_get_clip_region (window);
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GdkDrawingContext *context = gdk_window_begin_draw_frame (window, region);
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cairo_t *cr = gdk_drawing_context_get_cairo_context (context);
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eek_renderer_render_button (priv->renderer, cr, place, 1.0, TRUE);
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/*
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eek_renderer_render_key (priv->renderer, cr, key, 1.5, TRUE);
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*/
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gdk_window_end_draw_frame (window, context);
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cairo_region_destroy (region);
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}
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static void
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render_locked_button (GtkWidget *widget, struct button_place *place)
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{
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EekGtkKeyboard *self = EEK_GTK_KEYBOARD (widget);
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EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
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GdkWindow *window = gtk_widget_get_window (widget);
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cairo_region_t *region = gdk_window_get_clip_region (window);
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GdkDrawingContext *context = gdk_window_begin_draw_frame (window, region);
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cairo_t *cr = gdk_drawing_context_get_cairo_context (context);
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eek_renderer_render_button (priv->renderer, cr, place, 1.0, TRUE);
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gdk_window_end_draw_frame (window, context);
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cairo_region_destroy (region);
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}
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static void
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render_released_button (GtkWidget *widget,
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struct squeek_button *button)
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{
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(void)button;
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EekGtkKeyboard *self = EEK_GTK_KEYBOARD (widget);
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EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
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GdkWindow *window = gtk_widget_get_window (widget);
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cairo_region_t *region = gdk_window_get_clip_region (window);
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GdkDrawingContext *context = gdk_window_begin_draw_frame (window, region);
|
|
cairo_t *cr = gdk_drawing_context_get_cairo_context (context);
|
|
|
|
eek_renderer_render_keyboard (priv->renderer, cr);
|
|
|
|
gdk_window_end_draw_frame (window, context);
|
|
|
|
cairo_region_destroy (region);
|
|
}
|
|
|
|
static void
|
|
on_button_pressed (struct squeek_button *button,
|
|
struct squeek_view *view,
|
|
EekGtkKeyboard *self)
|
|
{
|
|
EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
|
|
|
|
/* renderer may have not been set yet if the widget is a popup */
|
|
if (!priv->renderer)
|
|
return;
|
|
|
|
struct button_place place = {
|
|
.button = button,
|
|
.row = eek_keyboard_get_row(view, button),
|
|
};
|
|
if (!place.row) {
|
|
return;
|
|
}
|
|
render_pressed_button (GTK_WIDGET(self), &place);
|
|
gtk_widget_queue_draw (GTK_WIDGET(self));
|
|
|
|
#if HAVE_LIBCANBERRA
|
|
ca_gtk_play_for_widget (widget, 0,
|
|
CA_PROP_EVENT_ID, "button-pressed",
|
|
CA_PROP_EVENT_DESCRIPTION, "virtual key pressed",
|
|
CA_PROP_APPLICATION_ID, "org.fedorahosted.Eekboard",
|
|
NULL);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
on_button_released (struct squeek_button *button,
|
|
struct squeek_view *view,
|
|
EekGtkKeyboard *self)
|
|
{
|
|
(void)view;
|
|
EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
|
|
|
|
/* renderer may have not been set yet if the widget is a popup */
|
|
if (!priv->renderer)
|
|
return;
|
|
|
|
render_released_button (GTK_WIDGET(self), button);
|
|
gtk_widget_queue_draw (GTK_WIDGET(self));
|
|
|
|
#if HAVE_LIBCANBERRA
|
|
ca_gtk_play_for_widget (widget, 0,
|
|
CA_PROP_EVENT_ID, "button-released",
|
|
CA_PROP_EVENT_DESCRIPTION, "virtual key pressed",
|
|
CA_PROP_APPLICATION_ID, "org.fedorahosted.Eekboard",
|
|
NULL);
|
|
#endif
|
|
}
|