Merge branch 'rootston'

1 files changed, 225 insertions, 0 deletions

diff --git a/rootston/cursor.c b/rootston/cursor.c
new file mode 100644
index 00000000..89f5874e
--- /dev/null
+++ b/rootston/cursor.c
@@ -0,0 +1,225 @@
+#include <stdint.h>
+#include <string.h>
+// TODO: BSD et al
+#include <linux/input-event-codes.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_cursor.h>
+#include <wlr/util/log.h>
+#include "rootston/config.h"
+#include "rootston/input.h"
+#include "rootston/desktop.h"
+
+void cursor_update_position(struct roots_input *input, uint32_t time) {
+	struct roots_desktop *desktop = input->server->desktop;
+	struct roots_view *view;
+	switch (input->mode) {
+	case ROOTS_CURSOR_PASSTHROUGH:
+		view = view_at(desktop, input->cursor->x, input->cursor->y);
+		if (view) {
+			struct wlr_box box;
+			view_get_input_bounds(view, &box);
+			double sx = input->cursor->x - view->x;
+			double sy = input->cursor->y - view->y;
+			wlr_seat_pointer_enter(input->wl_seat, view->wlr_surface, sx, sy);
+			wlr_seat_pointer_send_motion(input->wl_seat, time, sx, sy);
+		} else {
+			wlr_seat_pointer_clear_focus(input->wl_seat);
+		}
+		break;
+	case ROOTS_CURSOR_MOVE:
+		if (input->active_view) {
+			input->active_view->x = input->cursor->x - input->offs_x;
+			input->active_view->y = input->cursor->y - input->offs_y;
+		}
+		break;
+	case ROOTS_CURSOR_RESIZE:
+		break;
+	case ROOTS_CURSOR_ROTATE:
+		break;
+	}
+}
+
+static void set_view_focus(struct roots_input *input,
+		struct roots_desktop *desktop, struct roots_view *view) {
+	if (input->active_view == view) {
+		return;
+	}
+	struct roots_view *_view;
+	wl_list_for_each(_view, &desktop->views, link) {
+		view_activate(_view, _view == view);
+	}
+	input->active_view = view;
+	input->mode = ROOTS_CURSOR_PASSTHROUGH;
+}
+
+static void handle_cursor_motion(struct wl_listener *listener, void *data) {
+	struct roots_input *input = wl_container_of(listener, input, cursor_motion);
+	struct wlr_event_pointer_motion *event = data;
+	wlr_cursor_move(input->cursor, event->device,
+			event->delta_x, event->delta_y);
+	cursor_update_position(input, (uint32_t)event->time_usec);
+}
+
+static void handle_cursor_motion_absolute(struct wl_listener *listener,
+		void *data) {
+	struct roots_input *input = wl_container_of(listener,
+			input, cursor_motion_absolute);
+	struct wlr_event_pointer_motion_absolute *event = data;
+	wlr_cursor_warp_absolute(input->cursor, event->device,
+		event->x_mm / event->width_mm, event->y_mm / event->height_mm);
+	cursor_update_position(input, (uint32_t)event->time_usec);
+}
+
+static void handle_cursor_axis(struct wl_listener *listener, void *data) {
+	struct roots_input *input =
+		wl_container_of(listener, input, cursor_axis);
+	struct wlr_event_pointer_axis *event = data;
+	wlr_seat_pointer_send_axis(input->wl_seat, event->time_sec,
+		event->orientation, event->delta);
+}
+
+static void do_cursor_button_press(struct roots_input *input,
+		struct wlr_cursor *cursor, struct wlr_input_device *device,
+		uint32_t time, uint32_t button, uint32_t state) {
+	struct roots_desktop *desktop = input->server->desktop;
+	struct roots_view *view = view_at(desktop,
+			input->cursor->x, input->cursor->y);
+	uint32_t serial = wlr_seat_pointer_send_button(
+			input->wl_seat, time, button, state);
+	int i;
+	switch (state) {
+	case WLR_BUTTON_RELEASED:
+		input->active_view = NULL;
+		input->mode = ROOTS_CURSOR_PASSTHROUGH;
+		break;
+	case WLR_BUTTON_PRESSED:
+		i = input->input_events_idx;
+		input->input_events[i].serial = serial;
+		input->input_events[i].cursor = cursor;
+		input->input_events[i].device = device;
+		input->input_events_idx = (i + 1)
+			% (sizeof(input->input_events) / sizeof(input->input_events[0]));
+		set_view_focus(input, desktop, view);
+		if (view) {
+			wlr_seat_keyboard_enter(input->wl_seat, view->wlr_surface);
+		}
+		break;
+	}
+}
+
+static void handle_cursor_button(struct wl_listener *listener, void *data) {
+	struct roots_input *input = wl_container_of(listener, input, cursor_button);
+	struct wlr_event_pointer_button *event = data;
+	do_cursor_button_press(input, input->cursor, event->device,
+			(uint32_t)event->time_usec, event->button, event->state);
+}
+
+static void handle_tool_axis(struct wl_listener *listener, void *data) {
+	struct roots_input *input = wl_container_of(listener, input, cursor_tool_axis);
+	struct wlr_event_tablet_tool_axis *event = data;
+	if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_X) &&
+			(event->updated_axes & WLR_TABLET_TOOL_AXIS_Y)) {
+		wlr_cursor_warp_absolute(input->cursor, event->device,
+			event->x_mm / event->width_mm, event->y_mm / event->height_mm);
+		cursor_update_position(input, (uint32_t)event->time_usec);
+	}
+}
+
+static void handle_tool_tip(struct wl_listener *listener, void *data) {
+	struct roots_input *input = wl_container_of(listener, input, cursor_tool_tip);
+	struct wlr_event_tablet_tool_tip *event = data;
+	do_cursor_button_press(input, input->cursor, event->device,
+			(uint32_t)event->time_usec, BTN_LEFT, event->state);
+}
+
+void cursor_initialize(struct roots_input *input) {
+	struct wlr_cursor *cursor = input->cursor;
+
+	wl_list_init(&input->cursor_motion.link);
+	wl_signal_add(&cursor->events.motion, &input->cursor_motion);
+	input->cursor_motion.notify = handle_cursor_motion;
+
+	wl_list_init(&input->cursor_motion_absolute.link);
+	wl_signal_add(&cursor->events.motion_absolute,
+		&input->cursor_motion_absolute);
+	input->cursor_motion_absolute.notify = handle_cursor_motion_absolute;
+
+	wl_list_init(&input->cursor_button.link);
+	wl_signal_add(&cursor->events.button, &input->cursor_button);
+	input->cursor_button.notify = handle_cursor_button;
+
+	wl_list_init(&input->cursor_axis.link);
+	wl_signal_add(&cursor->events.axis, &input->cursor_axis);
+	input->cursor_axis.notify = handle_cursor_axis;
+
+	wl_list_init(&input->cursor_tool_axis.link);
+	wl_signal_add(&cursor->events.tablet_tool_axis, &input->cursor_tool_axis);
+	input->cursor_tool_axis.notify = handle_tool_axis;
+
+	wl_list_init(&input->cursor_tool_tip.link);
+	wl_signal_add(&cursor->events.tablet_tool_tip, &input->cursor_tool_tip);
+	input->cursor_tool_tip.notify = handle_tool_tip;
+}
+
+static void reset_device_mappings(struct roots_config *config,
+		struct wlr_cursor *cursor, struct wlr_input_device *device) {
+	wlr_cursor_map_input_to_output(cursor, device, NULL);
+	struct device_config *dconfig;
+	if ((dconfig = config_get_device(config, device))) {
+		wlr_cursor_map_input_to_region(cursor, device, dconfig->mapped_box);
+	}
+}
+
+static void set_device_output_mappings(struct roots_config *config,
+		struct wlr_cursor *cursor, struct wlr_output *output,
+		struct wlr_input_device *device) {
+	struct device_config *dconfig;
+	dconfig = config_get_device(config, device);
+	if (dconfig && dconfig->mapped_output &&
+			strcmp(dconfig->mapped_output, output->name) == 0) {
+		wlr_cursor_map_input_to_output(cursor, device, output);
+	}
+}
+
+void cursor_load_config(struct roots_config *config,
+		struct wlr_cursor *cursor,
+		struct roots_input *input,
+		struct roots_desktop *desktop) {
+	struct roots_pointer *pointer;
+	struct roots_touch *touch;
+	struct roots_tablet_tool *tablet_tool;
+	struct roots_output *output;
+
+	// reset mappings
+	wlr_cursor_map_to_output(cursor, NULL);
+	wl_list_for_each(pointer, &input->pointers, link) {
+		reset_device_mappings(config, cursor, pointer->device);
+	}
+	wl_list_for_each(touch, &input->touch, link) {
+		reset_device_mappings(config, cursor, touch->device);
+	}
+	wl_list_for_each(tablet_tool, &input->tablet_tools, link) {
+		reset_device_mappings(config, cursor, tablet_tool->device);
+	}
+
+	// configure device to output mappings
+	const char *mapped_output = config->cursor.mapped_output;
+	wl_list_for_each(output, &desktop->outputs, link) {
+		if (mapped_output && strcmp(mapped_output, output->wlr_output->name) == 0) {
+			wlr_cursor_map_to_output(cursor, output->wlr_output);
+		}
+
+		wl_list_for_each(pointer, &input->pointers, link) {
+			set_device_output_mappings(config, cursor, output->wlr_output,
+				pointer->device);
+		}
+		wl_list_for_each(tablet_tool, &input->tablet_tools, link) {
+			set_device_output_mappings(config, cursor, output->wlr_output,
+				tablet_tool->device);
+		}
+		wl_list_for_each(touch, &input->touch, link) {
+			set_device_output_mappings(config, cursor, output->wlr_output,
+				touch->device);
+		}
+	}
+}