text: Add example clients for text protocol
diff --git a/clients/keyboard.c b/clients/keyboard.c
new file mode 100644
index 0000000..f7bddeb
--- /dev/null
+++ b/clients/keyboard.c
@@ -0,0 +1,214 @@
+/*
+ * Copyright © 2012 Openismus GmbH
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of the copyright holders not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission. The copyright holders make
+ * no representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <linux/input.h>
+#include <cairo.h>
+
+#include "window.h"
+#include "text-client-protocol.h"
+#include "desktop-shell-client-protocol.h"
+
+struct virtual_keyboard {
+ struct input_panel *input_panel;
+ struct input_method *input_method;
+ struct display *display;
+};
+
+struct keyboard {
+ struct virtual_keyboard *keyboard;
+ struct window *window;
+ struct widget *widget;
+ int cx;
+ int cy;
+};
+
+static void
+redraw_handler(struct widget *widget, void *data)
+{
+ struct keyboard *keyboard = data;
+ cairo_surface_t *surface;
+ struct rectangle allocation;
+ cairo_t *cr;
+ int cx, cy;
+ int i;
+
+ surface = window_get_surface(keyboard->window);
+ widget_get_allocation(keyboard->widget, &allocation);
+
+ cr = cairo_create(surface);
+ cairo_rectangle(cr, allocation.x, allocation.y, allocation.width, allocation.height);
+ cairo_clip(cr);
+
+ cairo_translate(cr, allocation.x, allocation.y);
+
+ cx = keyboard->cx;
+ cy = keyboard->cy;
+
+ cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+ cairo_set_source_rgba(cr, 1, 1, 1, 0.5);
+ cairo_rectangle(cr, 0, 0, 10 * cx, 5 * cy);
+ cairo_paint(cr);
+
+ cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
+
+ for (i = 0; i <= 'Z' - '0'; ++i) {
+ const int x = i % 10;
+ const int y = i / 10;
+ char text[] = { i + '0', '\0' };
+ cairo_text_extents_t extents;
+ int dx, dy;
+
+ cairo_text_extents(cr, text, &extents);
+ dx = extents.width;
+ dy = extents.height;
+
+ cairo_set_source_rgb(cr, 0, 0, 0);
+ cairo_rectangle(cr, x * cx, y * cy, cx, cy);
+ cairo_stroke(cr);
+
+ cairo_move_to(cr, x * cx + 0.5 * (cx - dx), y * cy + 0.5 * (cy - dy));
+
+ cairo_set_source_rgb(cr, 0, 0, 0);
+ cairo_show_text(cr, text);
+ }
+
+ cairo_destroy(cr);
+ cairo_surface_destroy(surface);
+}
+
+static void
+resize_handler(struct widget *widget,
+ int32_t width, int32_t height, void *data)
+{
+ /* struct keyboard *keyboard = data; */
+}
+
+static void
+button_handler(struct widget *widget,
+ struct input *input, uint32_t time,
+ uint32_t button,
+ enum wl_pointer_button_state state, void *data)
+{
+ struct keyboard *keyboard = data;
+ struct rectangle allocation;
+ int32_t x, y;
+ char text[] = { '0', '\0' };
+
+ if (state != WL_POINTER_BUTTON_STATE_PRESSED || button != BTN_LEFT) {
+ return;
+ }
+
+ input_get_position(input, &x, &y);
+
+ widget_get_allocation(keyboard->widget, &allocation);
+ x -= allocation.x;
+ y -= allocation.y;
+
+ text[0] = y / keyboard->cy * 10 + x / keyboard->cx + '0';
+
+ input_method_commit_string(keyboard->keyboard->input_method, text, -1);
+
+ widget_schedule_redraw(widget);
+}
+
+static void
+global_handler(struct wl_display *display, uint32_t id,
+ const char *interface, uint32_t version, void *data)
+{
+ struct virtual_keyboard *keyboard = data;
+
+ if (!strcmp(interface, "input_panel")) {
+ keyboard->input_panel = wl_display_bind(display, id, &input_panel_interface);
+ } else if (!strcmp(interface, "input_method")) {
+ keyboard->input_method = wl_display_bind(display, id, &input_method_interface);
+ }
+}
+
+static void
+keyboard_create(struct output *output, struct virtual_keyboard *virtual_keyboard)
+{
+ struct keyboard *keyboard;
+
+ keyboard = malloc(sizeof *keyboard);
+ memset(keyboard, 0, sizeof *keyboard);
+
+ keyboard->keyboard = virtual_keyboard;
+ keyboard->window = window_create(virtual_keyboard->display);
+ keyboard->widget = window_add_widget(keyboard->window, keyboard);
+
+ window_set_title(keyboard->window, "Virtual keyboard");
+ window_set_custom(keyboard->window);
+ window_set_user_data(keyboard->window, keyboard);
+
+ keyboard->cx = 40;
+ keyboard->cy = 40;
+
+ widget_set_redraw_handler(keyboard->widget, redraw_handler);
+ widget_set_resize_handler(keyboard->widget, resize_handler);
+ widget_set_button_handler(keyboard->widget, button_handler);
+
+ window_schedule_resize(keyboard->window, keyboard->cx * 10, keyboard->cy * 5);
+
+ input_panel_set_surface(virtual_keyboard->input_panel,
+ window_get_wl_shell_surface(keyboard->window),
+ output_get_wl_output(output));
+}
+
+static void
+handle_output_configure(struct output *output, void *data)
+{
+ struct virtual_keyboard *virtual_keyboard = data;
+
+ /* skip existing outputs */
+ if (output_get_user_data(output))
+ return;
+
+ output_set_user_data(output, virtual_keyboard);
+
+ keyboard_create(output, virtual_keyboard);
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct virtual_keyboard virtual_keyboard;
+
+ virtual_keyboard.display = display_create(argc, argv);
+ if (virtual_keyboard.display == NULL) {
+ fprintf(stderr, "failed to create display: %m\n");
+ return -1;
+ }
+
+ wl_display_add_global_listener(display_get_display(virtual_keyboard.display),
+ global_handler, &virtual_keyboard);
+
+ display_set_user_data(virtual_keyboard.display, &virtual_keyboard);
+ display_set_output_configure_handler(virtual_keyboard.display, handle_output_configure);
+
+ display_run(virtual_keyboard.display);
+
+ return 0;
+}