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squeekboard/src/server-context-service.c
2021-12-05 21:04:43 +01:00

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/*
* Copyright (C) 2010-2011 Daiki Ueno <ueno@unixuser.org>
* Copyright (C) 2010-2011 Red Hat, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include "eek/eek.h"
#include "eek/eek-gtk-keyboard.h"
#include "eek/layersurface.h"
#include "eekboard/eekboard-context-service.h"
#include "submission.h"
#include "wayland.h"
#include "server-context-service.h"
enum {
PROP_0,
PROP_VISIBLE,
PROP_ENABLED,
PROP_LAST
};
struct _ServerContextService {
GObject parent;
EekboardContextService *state; // unowned
/// Needed for instantiating the widget
struct submission *submission; // unowned
struct squeek_layout_state *layout;
struct ui_manager *manager; // unowned
struct vis_manager *vis_manager; // owned
gboolean visible;
PhoshLayerSurface *window;
GtkWidget *widget; // nullable
guint hiding;
guint last_requested_height;
};
G_DEFINE_TYPE(ServerContextService, server_context_service, G_TYPE_OBJECT);
static void
on_destroy (ServerContextService *self, GtkWidget *widget)
{
g_return_if_fail (SERVER_IS_CONTEXT_SERVICE (self));
g_assert (widget == GTK_WIDGET(self->window));
self->window = NULL;
self->widget = NULL;
//eekboard_context_service_destroy (EEKBOARD_CONTEXT_SERVICE (context));
}
static void
on_notify_map (ServerContextService *self, GtkWidget *widget)
{
g_return_if_fail (SERVER_IS_CONTEXT_SERVICE (self));
g_object_set (self, "visible", TRUE, NULL);
}
static void
on_notify_unmap (ServerContextService *self, GtkWidget *widget)
{
g_return_if_fail (SERVER_IS_CONTEXT_SERVICE (self));
g_object_set (self, "visible", FALSE, NULL);
}
static uint32_t
calculate_height(int32_t width, GdkRectangle *geometry)
{
uint32_t height;
if (geometry->width > geometry->height) {
// 1:5 ratio works fine on lanscape mode, and makes sure there's
// room left for the app window
height = width / 5;
} else {
if (width < 540 && width > 0) {
height = ((unsigned)width * 7 / 12); // to match 360×210
} else {
// Here we switch to wide layout, less height needed
height = ((unsigned)width * 7 / 22);
}
}
return height;
}
static void
on_surface_configure(ServerContextService *self, PhoshLayerSurface *surface)
{
GdkDisplay *display = NULL;
GdkWindow *window = NULL;
GdkMonitor *monitor = NULL;
GdkRectangle geometry;
gint width;
gint height;
g_return_if_fail (SERVER_IS_CONTEXT_SERVICE (self));
g_return_if_fail (PHOSH_IS_LAYER_SURFACE (surface));
g_object_get(G_OBJECT(surface),
"configured-width", &width,
"configured-height", &height,
NULL);
// In order to improve height calculation, we need the monitor geometry so
// we can use different algorithms for portrait and landscape mode.
// Note: this is a temporary fix until the size manager is complete.
display = gdk_display_get_default ();
if (display) {
window = gtk_widget_get_window (GTK_WIDGET (surface));
}
if (window) {
monitor = gdk_display_get_monitor_at_window (display, window);
}
if (monitor) {
gdk_monitor_get_geometry (monitor, &geometry);
} else {
geometry.width = geometry.height = 0;
}
// When the geometry event comes after surface.configure,
// this entire height calculation does nothing.
// guint desired_height = squeek_uiman_get_perceptual_height(context->manager);
// Temporarily use old method, until the size manager is complete.
guint desired_height = calculate_height(width, &geometry);
guint configured_height = (guint)height;
// if height was already requested once but a different one was given
// (for the same set of surrounding properties),
// then it's probably not reasonable to ask for it again,
// as it's likely to create pointless loops
// of request->reject->request_again->...
if (desired_height != configured_height
&& self->last_requested_height != desired_height) {
self->last_requested_height = desired_height;
phosh_layer_surface_set_size(surface, 0,
(gint)desired_height);
phosh_layer_surface_set_exclusive_zone(surface, (gint)desired_height);
phosh_layer_surface_wl_surface_commit (surface);
}
}
static void
make_window (ServerContextService *self)
{
if (self->window) {
g_error("Window already present");
}
struct squeek_output_handle output = squeek_outputs_get_current(squeek_wayland->outputs);
squeek_uiman_set_output(self->manager, output);
uint32_t height = squeek_uiman_get_perceptual_height(self->manager);
self->window = g_object_new (
PHOSH_TYPE_LAYER_SURFACE,
"layer-shell", squeek_wayland->layer_shell,
"wl-output", output.output,
"height", height,
"anchor", ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM
| ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT
| ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT,
"layer", ZWLR_LAYER_SHELL_V1_LAYER_TOP,
"kbd-interactivity", FALSE,
"exclusive-zone", height,
"namespace", "osk",
NULL
);
g_object_connect (self->window,
"swapped-signal::destroy", G_CALLBACK(on_destroy), self,
"swapped-signal::map", G_CALLBACK(on_notify_map), self,
"swapped-signal::unmap", G_CALLBACK(on_notify_unmap), self,
"swapped-signal::configured", G_CALLBACK(on_surface_configure), self,
NULL);
// The properties below are just to make hacking easier.
// The way we use layer-shell overrides some,
// and there's no space in the protocol for others.
// Those may still be useful in the future,
// or for hacks with regular windows.
gtk_widget_set_can_focus (GTK_WIDGET(self->window), FALSE);
g_object_set (G_OBJECT(self->window), "accept_focus", FALSE, NULL);
gtk_window_set_title (GTK_WINDOW(self->window), "Squeekboard");
gtk_window_set_icon_name (GTK_WINDOW(self->window), "squeekboard");
gtk_window_set_keep_above (GTK_WINDOW(self->window), TRUE);
}
static void
destroy_window (ServerContextService *self)
{
gtk_widget_destroy (GTK_WIDGET (self->window));
self->window = NULL;
}
static void
make_widget (ServerContextService *self)
{
if (self->widget) {
gtk_widget_destroy(self->widget);
self->widget = NULL;
}
self->widget = eek_gtk_keyboard_new (self->state, self->submission, self->layout);
gtk_widget_set_has_tooltip (self->widget, TRUE);
gtk_container_add (GTK_CONTAINER(self->window), self->widget);
gtk_widget_show_all(self->widget);
}
static void
server_context_service_real_show_keyboard (ServerContextService *self)
{
if (!self->window) {
make_window (self);
}
if (!self->widget) {
make_widget (self);
}
self->visible = TRUE;
gtk_widget_show (GTK_WIDGET(self->window));
}
static gboolean
show_keyboard_source_func(ServerContextService *context)
{
server_context_service_real_show_keyboard(context);
return G_SOURCE_REMOVE;
}
static void
server_context_service_real_hide_keyboard (ServerContextService *self)
{
gtk_widget_hide (GTK_WIDGET(self->window));
self->visible = FALSE;
}
static gboolean
hide_keyboard_source_func(ServerContextService *context)
{
server_context_service_real_hide_keyboard(context);
return G_SOURCE_REMOVE;
}
static gboolean
on_hide (ServerContextService *self)
{
server_context_service_real_hide_keyboard(self);
self->hiding = 0;
return G_SOURCE_REMOVE;
}
static void
server_context_service_show_keyboard (ServerContextService *self)
{
g_return_if_fail (SERVER_IS_CONTEXT_SERVICE(self));
if (self->hiding) {
g_source_remove (self->hiding);
self->hiding = 0;
}
if (!self->visible) {
g_idle_add((GSourceFunc)show_keyboard_source_func, self);
}
}
void
server_context_service_force_show_keyboard (ServerContextService *self)
{
if (!submission_hint_available(self->submission)) {
eekboard_context_service_set_hint_purpose(
self->state,
ZWP_TEXT_INPUT_V3_CONTENT_HINT_NONE,
ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_NORMAL
);
}
server_context_service_show_keyboard(self);
}
void
server_context_service_hide_keyboard (ServerContextService *self)
{
g_return_if_fail (SERVER_IS_CONTEXT_SERVICE(self));
if (self->visible) {
g_idle_add((GSourceFunc)hide_keyboard_source_func, self);
}
}
/// Meant for use by the input-method handler:
/// the visible keyboard is no longer needed.
/// The implementation will delay it slightly,
/// because the release may be due to switching from one text field to another.
/// In this case, the user doesn't really need the keyboard surface
/// to disappear completely.
void
server_context_service_release_visibility (ServerContextService *self)
{
g_return_if_fail (SERVER_IS_CONTEXT_SERVICE(self));
if (!self->hiding && self->visible) {
self->hiding = g_timeout_add (200, (GSourceFunc) on_hide, self);
}
}
static void
server_context_service_set_physical_keyboard_present (ServerContextService *self, gboolean physical_keyboard_present)
{
g_return_if_fail (SERVER_IS_CONTEXT_SERVICE (self));
squeek_visman_set_keyboard_present(self->vis_manager, physical_keyboard_present);
}
static void
server_context_service_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
ServerContextService *self = SERVER_CONTEXT_SERVICE(object);
switch (prop_id) {
case PROP_VISIBLE:
self->visible = g_value_get_boolean (value);
break;
case PROP_ENABLED:
server_context_service_set_physical_keyboard_present (self, !g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
server_context_service_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
ServerContextService *self = SERVER_CONTEXT_SERVICE(object);
switch (prop_id) {
case PROP_VISIBLE:
g_value_set_boolean (value, self->visible);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
server_context_service_dispose (GObject *object)
{
ServerContextService *self = SERVER_CONTEXT_SERVICE(object);
destroy_window (self);
self->widget = NULL;
G_OBJECT_CLASS (server_context_service_parent_class)->dispose (object);
}
static void
server_context_service_class_init (ServerContextServiceClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GParamSpec *pspec;
gobject_class->set_property = server_context_service_set_property;
gobject_class->get_property = server_context_service_get_property;
gobject_class->dispose = server_context_service_dispose;
/**
* Flag to indicate if keyboard is visible or not.
*/
pspec = g_param_spec_boolean ("visible",
"Visible",
"Visible",
FALSE,
G_PARAM_READWRITE);
g_object_class_install_property (gobject_class,
PROP_VISIBLE,
pspec);
/**
* ServerContextServie:keyboard:
*
* Does the user want the keyboard to show up automatically?
*/
pspec =
g_param_spec_boolean ("enabled",
"Enabled",
"Whether the keyboard is enabled",
TRUE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
g_object_class_install_property (gobject_class,
PROP_ENABLED,
pspec);
}
static void
server_context_service_init (ServerContextService *self) {}
static void
init (ServerContextService *self) {
const char *schema_name = "org.gnome.desktop.a11y.applications";
GSettingsSchemaSource *ssrc = g_settings_schema_source_get_default();
g_autoptr(GSettingsSchema) schema = NULL;
if (!ssrc) {
g_warning("No gsettings schemas installed.");
return;
}
schema = g_settings_schema_source_lookup(ssrc, schema_name, TRUE);
if (schema) {
g_autoptr(GSettings) settings = g_settings_new (schema_name);
g_settings_bind (settings, "screen-keyboard-enabled",
self, "enabled", G_SETTINGS_BIND_GET);
} else {
g_warning("Gsettings schema %s is not installed on the system. "
"Enabling by default.", schema_name);
}
}
ServerContextService *
server_context_service_new (EekboardContextService *self, struct submission *submission, struct squeek_layout_state *layout, struct ui_manager *uiman, struct vis_manager *visman)
{
ServerContextService *ui = g_object_new (SERVER_TYPE_CONTEXT_SERVICE, NULL);
ui->submission = submission;
ui->state = self;
ui->layout = layout;
ui->manager = uiman;
ui->vis_manager = visman;
init(ui);
return ui;
}
void
server_context_service_update_visible (ServerContextService *self, gboolean visible) {
if (visible) {
server_context_service_show_keyboard(self);
} else {
server_context_service_hide_keyboard(self);
}
}