Tony Crisci
7 years ago
parent
48fa59c22e
commit
e3d47376dc
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#ifndef _WLR_TYPES_CURSOR_H
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#define _WLR_TYPES_CURSOR_H
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#include <wayland-server.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/types/wlr_output_layout.h>
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#include <wlr/types/wlr_input_device.h>
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#include <wlr/xcursor.h>
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struct wlr_cursor_state;
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//struct wlr_cursor_impl *;
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struct wlr_cursor {
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struct wlr_cursor_state *state;
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//struct wlr_cursor_impl *impl;
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int x, y;
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struct {
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struct wl_signal motion;
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struct wl_signal motion_absolute;
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struct wl_signal button;
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struct wl_signal axis;
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} events;
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};
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struct wlr_cursor *wlr_cursor_init();
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void wlr_cursor_destroy(struct wlr_cursor *cur);
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void wlr_cursor_set_xcursor(struct wlr_cursor *cur, struct wlr_xcursor *xcur);
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void wlr_cursor_warp(struct wlr_cursor *cur, double x, double y);
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void wlr_cursor_move(struct wlr_cursor *cur, double delta_x, double delta_y);
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/**
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* Attaches this input device to this cursor. The input device must be one of:
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*
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* - WLR_INPUT_DEVICE_POINTER
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* - WLR_INPUT_DEVICE_TOUCH
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* - WLR_INPUT_DEVICE_TABLET_TOOL
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*/
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void wlr_cursor_attach_input_device(struct wlr_cursor *cur,
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struct wlr_input_device *dev);
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void wlr_cursor_detach_input_device(struct wlr_cursor *cur,
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struct wlr_input_device *dev);
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/**
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* Uses the given layout to establish the boundaries and movement semantics of
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* this cursor. Cursors without an output layout allow infinite movement in any
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* direction and do not support absolute input events.
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*/
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void wlr_cursor_attach_output_layout(struct wlr_cursor *cur,
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struct wlr_output_layout *l);
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/**
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* Attaches this cursor to the given output, which must be among the outputs in
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* the current output_layout for this cursor. This call is invalid for a cursor
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* without an associated output layout.
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*/
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void wlr_cursor_map_to_output(struct wlr_cursor *cur, struct wlr_output *output);
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/**
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* Maps all input from a specific input device to a given output. The input
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* device must be attached to this cursor and the output must be among the
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* outputs in the attached output layout.
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*/
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void wlr_cursor_map_input_to_output(struct wlr_cursor *cur,
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struct wlr_input_device *dev, struct wlr_output *output);
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/**
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* Maps this cursor to an arbitrary region on the associated wlr_output_layout.
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*/
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//void wlr_cursor_map_to_region(struct wlr_cursor *cur, struct wlr_geometry *geo);
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/**
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* Maps inputs from this input device to an arbitrary region on the associated
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* wlr_output_layout.
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*/
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//void wlr_cursor_map_input_to_region(struct wlr_cursor *cur, struct wlr_input_device *dev, struct wlr_geometry *geo);
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#endif
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@ -0,0 +1,206 @@
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#include <wlr/types/wlr_cursor.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <wlr/util/log.h>
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#include <wayland-server.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/types/wlr_output_layout.h>
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#include <wlr/types/wlr_input_device.h>
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struct wlr_cursor_device {
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struct wlr_cursor *cursor;
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struct wlr_input_device *device;
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struct wl_list link;
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struct wl_listener motion;
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struct wl_listener motion_absolute;
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struct wl_listener button;
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struct wl_listener axis;
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};
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struct wlr_cursor_state {
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struct wl_list devices;
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struct wlr_output_layout *layout;
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struct wlr_xcursor *xcursor;
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};
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struct wlr_cursor *wlr_cursor_init() {
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struct wlr_cursor *cur = calloc(1, sizeof(struct wlr_cursor));
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if (!cur) {
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wlr_log(L_ERROR, "Failed to allocate wlr_cursor");
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return NULL;
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}
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cur->state = calloc(1, sizeof(struct wlr_cursor_state));
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if (!cur->state) {
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wlr_log(L_ERROR, "Failed to allocate wlr_cursor_state");
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return NULL;
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}
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wl_list_init(&cur->state->devices);
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wl_signal_init(&cur->events.motion);
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wl_signal_init(&cur->events.motion_absolute);
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wl_signal_init(&cur->events.button);
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wl_signal_init(&cur->events.axis);
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cur->x = 100;
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cur->y = 100;
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return cur;
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}
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void wlr_cursor_destroy(struct wlr_cursor *cur) {
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struct wlr_cursor_device *device;
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wl_list_for_each(device, &cur->state->devices, link) {
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wl_list_remove(&device->link);
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free(device);
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}
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free(cur);
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}
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void wlr_cursor_set_xcursor(struct wlr_cursor *cur, struct wlr_xcursor *xcur) {
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cur->state->xcursor = xcur;
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}
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void wlr_cursor_warp(struct wlr_cursor *cur, double x, double y) {
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}
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void wlr_cursor_move(struct wlr_cursor *cur, double delta_x, double delta_y) {
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//struct wlr_output *current_output;
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//current_output = wlr_output_layout_output_at(cur->state->layout, cur->x, cur->y);
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// TODO handle no layout
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assert(cur->state->layout);
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// TODO handle layout boundaries
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double new_x = cur->x + delta_x;
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double new_y = cur->y + delta_y;
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int hotspot_x = 0;
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int hotspot_y = 0;
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if (cur->state->xcursor && cur->state->xcursor->image_count > 0) {
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struct wlr_xcursor_image *image = cur->state->xcursor->images[0];
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hotspot_x = image->hotspot_x;
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hotspot_y = image->hotspot_y;
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}
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struct wlr_output *output;
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output = wlr_output_layout_output_at(cur->state->layout, new_x, new_y);
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if (output) {
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int output_x = new_x;
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int output_y = new_y;
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// TODO fix double to int rounding issues
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wlr_output_layout_output_coords(cur->state->layout, output, &output_x, &output_y);
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wlr_output_move_cursor(output, output_x - hotspot_x, output_y - hotspot_y);
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cur->x = new_x;
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cur->y = new_y;
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}
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}
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static void handle_pointer_motion(struct wl_listener *listener, void *data) {
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struct wlr_event_pointer_motion *event = data;
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struct wlr_cursor_device *device = wl_container_of(listener, device, motion);
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wl_signal_emit(&device->cursor->events.motion, event);
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}
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static void handle_pointer_motion_absolute(struct wl_listener *listener, void *data) {
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struct wlr_event_pointer_motion_absolute *event = data;
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struct wlr_cursor_device *device = wl_container_of(listener, device, motion_absolute);
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wl_signal_emit(&device->cursor->events.motion_absolute, event);
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}
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static void handle_pointer_button(struct wl_listener *listener, void *data) {
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struct wlr_event_pointer_button *event = data;
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struct wlr_cursor_device *device = wl_container_of(listener, device, button);
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wl_signal_emit(&device->cursor->events.button, event);
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}
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static void handle_pointer_axis(struct wl_listener *listener, void *data) {
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struct wlr_event_pointer_axis *event = data;
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struct wlr_cursor_device *device = wl_container_of(listener, device, axis);
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wl_signal_emit(&device->cursor->events.axis, event);
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}
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void wlr_cursor_attach_input_device(struct wlr_cursor *cur,
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struct wlr_input_device *dev) {
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if (dev->type != WLR_INPUT_DEVICE_POINTER &&
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dev->type != WLR_INPUT_DEVICE_TOUCH &&
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dev->type != WLR_INPUT_DEVICE_TABLET_TOOL) {
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wlr_log(L_ERROR, "only device types of pointer, touch or tablet tool are"
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"supported");
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return;
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}
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// TODO support other device types
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if (dev->type != WLR_INPUT_DEVICE_POINTER) {
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wlr_log(L_ERROR, "TODO: support touch and tablet tool devices");
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return;
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}
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// make sure it is not already attached
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struct wlr_cursor_device *_dev;
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wl_list_for_each(_dev, &cur->state->devices, link) {
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if (_dev->device == dev) {
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return;
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}
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}
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struct wlr_cursor_device *device = calloc(1, sizeof(struct wlr_cursor_device));
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if (!device) {
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wlr_log(L_ERROR, "Failed to allocate wlr_cursor_device");
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return;
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}
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device->cursor = cur;
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device->device = dev;
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// listen to events
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wl_signal_add(&dev->pointer->events.motion, &device->motion);
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device->motion.notify = handle_pointer_motion;
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wl_signal_add(&dev->pointer->events.motion_absolute, &device->motion_absolute);
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device->motion_absolute.notify = handle_pointer_motion_absolute;
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wl_signal_add(&dev->pointer->events.button, &device->button);
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device->button.notify = handle_pointer_button;
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wl_signal_add(&dev->pointer->events.axis, &device->axis);
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device->axis.notify = handle_pointer_axis;
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wl_list_insert(&cur->state->devices, &device->link);
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}
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void wlr_cursor_detach_input_device(struct wlr_cursor *cur,
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struct wlr_input_device *dev) {
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struct wlr_cursor_device *target_device = NULL, *_device = NULL;
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wl_list_for_each(_device, &cur->state->devices, link) {
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if (_device->device == dev) {
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target_device = _device;
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break;
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}
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}
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if (target_device) {
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wl_list_remove(&target_device->link);
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free(target_device);
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}
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}
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void wlr_cursor_attach_output_layout(struct wlr_cursor *cur,
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struct wlr_output_layout *l) {
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cur->state->layout = l;
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}
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void wlr_cursor_map_to_output(struct wlr_cursor *cur,
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struct wlr_output *output) {
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wlr_log(L_DEBUG, "TODO: map to output");
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}
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void wlr_cursor_map_input_to_output(struct wlr_cursor *cur,
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struct wlr_input_device *dev, struct wlr_output *output) {
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wlr_log(L_DEBUG, "TODO map input to output");
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}
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