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314 lines
8.3 KiB
314 lines
8.3 KiB
/*
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* Copyright 2010-2012 Intel Corporation
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* Copyright 2013 Raspberry Pi Foundation
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* Copyright 2011-2012,2020 Collabora, Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "kiosk-shell-grab.h"
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#include "shared/helpers.h"
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struct kiosk_shell_grab {
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struct kiosk_shell_surface *shsurf;
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struct wl_listener shsurf_destroy_listener;
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struct weston_pointer_grab pointer_grab;
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struct weston_touch_grab touch_grab;
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wl_fixed_t dx, dy;
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bool active;
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};
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static void
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kiosk_shell_grab_destroy(struct kiosk_shell_grab *shgrab);
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/*
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* pointer_move_grab_interface
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*/
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static void
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pointer_move_grab_focus(struct weston_pointer_grab *grab)
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{
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}
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static void
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pointer_move_grab_axis(struct weston_pointer_grab *grab,
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const struct timespec *time,
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struct weston_pointer_axis_event *event)
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{
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}
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static void
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pointer_move_grab_axis_source(struct weston_pointer_grab *grab,
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uint32_t source)
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{
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}
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static void
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pointer_move_grab_frame(struct weston_pointer_grab *grab)
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{
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}
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static void
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pointer_move_grab_motion(struct weston_pointer_grab *pointer_grab,
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const struct timespec *time,
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struct weston_pointer_motion_event *event)
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{
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struct kiosk_shell_grab *shgrab =
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container_of(pointer_grab, struct kiosk_shell_grab, pointer_grab);
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struct weston_pointer *pointer = pointer_grab->pointer;
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struct kiosk_shell_surface *shsurf = shgrab->shsurf;
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struct weston_surface *surface;
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int dx, dy;
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weston_pointer_move(pointer, event);
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if (!shsurf)
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return;
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surface = weston_desktop_surface_get_surface(shsurf->desktop_surface);
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dx = wl_fixed_to_int(pointer->x + shgrab->dx);
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dy = wl_fixed_to_int(pointer->y + shgrab->dy);
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weston_view_set_position(shsurf->view, dx, dy);
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weston_compositor_schedule_repaint(surface->compositor);
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}
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static void
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pointer_move_grab_button(struct weston_pointer_grab *pointer_grab,
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const struct timespec *time,
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uint32_t button, uint32_t state_w)
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{
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struct kiosk_shell_grab *shgrab =
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container_of(pointer_grab, struct kiosk_shell_grab, pointer_grab);
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struct weston_pointer *pointer = pointer_grab->pointer;
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enum wl_pointer_button_state state = state_w;
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if (pointer->button_count == 0 &&
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state == WL_POINTER_BUTTON_STATE_RELEASED)
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kiosk_shell_grab_destroy(shgrab);
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}
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static void
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pointer_move_grab_cancel(struct weston_pointer_grab *pointer_grab)
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{
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struct kiosk_shell_grab *shgrab =
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container_of(pointer_grab, struct kiosk_shell_grab, pointer_grab);
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kiosk_shell_grab_destroy(shgrab);
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}
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static const struct weston_pointer_grab_interface pointer_move_grab_interface = {
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pointer_move_grab_focus,
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pointer_move_grab_motion,
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pointer_move_grab_button,
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pointer_move_grab_axis,
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pointer_move_grab_axis_source,
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pointer_move_grab_frame,
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pointer_move_grab_cancel,
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};
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/*
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* touch_move_grab_interface
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*/
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static void
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touch_move_grab_down(struct weston_touch_grab *grab,
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const struct timespec *time,
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int touch_id, wl_fixed_t x, wl_fixed_t y)
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{
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}
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static void
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touch_move_grab_up(struct weston_touch_grab *touch_grab,
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const struct timespec *time, int touch_id)
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{
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struct kiosk_shell_grab *shgrab =
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container_of(touch_grab, struct kiosk_shell_grab, touch_grab);
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if (touch_id == 0)
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shgrab->active = false;
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if (touch_grab->touch->num_tp == 0)
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kiosk_shell_grab_destroy(shgrab);
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}
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static void
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touch_move_grab_motion(struct weston_touch_grab *touch_grab,
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const struct timespec *time, int touch_id,
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wl_fixed_t x, wl_fixed_t y)
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{
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struct kiosk_shell_grab *shgrab =
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container_of(touch_grab, struct kiosk_shell_grab, touch_grab);
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struct weston_touch *touch = touch_grab->touch;
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struct kiosk_shell_surface *shsurf = shgrab->shsurf;
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struct weston_surface *surface;
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int dx, dy;
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if (!shsurf || !shgrab->active)
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return;
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surface = weston_desktop_surface_get_surface(shsurf->desktop_surface);
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dx = wl_fixed_to_int(touch->grab_x + shgrab->dx);
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dy = wl_fixed_to_int(touch->grab_y + shgrab->dy);
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weston_view_set_position(shsurf->view, dx, dy);
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weston_compositor_schedule_repaint(surface->compositor);
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}
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static void
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touch_move_grab_frame(struct weston_touch_grab *grab)
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{
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}
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static void
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touch_move_grab_cancel(struct weston_touch_grab *touch_grab)
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{
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struct kiosk_shell_grab *shgrab =
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container_of(touch_grab, struct kiosk_shell_grab, touch_grab);
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kiosk_shell_grab_destroy(shgrab);
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}
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static const struct weston_touch_grab_interface touch_move_grab_interface = {
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touch_move_grab_down,
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touch_move_grab_up,
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touch_move_grab_motion,
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touch_move_grab_frame,
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touch_move_grab_cancel,
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};
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/*
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* kiosk_shell_grab
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*/
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static void
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kiosk_shell_grab_handle_shsurf_destroy(struct wl_listener *listener, void *data)
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{
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struct kiosk_shell_grab *shgrab =
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container_of(listener, struct kiosk_shell_grab,
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shsurf_destroy_listener);
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shgrab->shsurf = NULL;
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}
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static struct kiosk_shell_grab *
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kiosk_shell_grab_create(struct kiosk_shell_surface *shsurf)
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{
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struct kiosk_shell_grab *shgrab;
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shgrab = zalloc(sizeof *shgrab);
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if (!shgrab)
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return NULL;
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shgrab->shsurf = shsurf;
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shgrab->shsurf_destroy_listener.notify =
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kiosk_shell_grab_handle_shsurf_destroy;
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wl_signal_add(&shsurf->destroy_signal,
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&shgrab->shsurf_destroy_listener);
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shsurf->grabbed = true;
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return shgrab;
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}
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enum kiosk_shell_grab_result
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kiosk_shell_grab_start_for_pointer_move(struct kiosk_shell_surface *shsurf,
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struct weston_pointer *pointer)
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{
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struct kiosk_shell_grab *shgrab;
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if (!shsurf)
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return KIOSK_SHELL_GRAB_RESULT_ERROR;
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if (shsurf->grabbed ||
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weston_desktop_surface_get_fullscreen(shsurf->desktop_surface) ||
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weston_desktop_surface_get_maximized(shsurf->desktop_surface))
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return KIOSK_SHELL_GRAB_RESULT_IGNORED;
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shgrab = kiosk_shell_grab_create(shsurf);
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if (!shgrab)
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return KIOSK_SHELL_GRAB_RESULT_ERROR;
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shgrab->dx = wl_fixed_from_double(shsurf->view->geometry.x) -
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pointer->grab_x;
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shgrab->dy = wl_fixed_from_double(shsurf->view->geometry.y) -
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pointer->grab_y;
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shgrab->active = true;
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weston_seat_break_desktop_grabs(pointer->seat);
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shgrab->pointer_grab.interface = &pointer_move_grab_interface;
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weston_pointer_start_grab(pointer, &shgrab->pointer_grab);
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return KIOSK_SHELL_GRAB_RESULT_OK;
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}
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enum kiosk_shell_grab_result
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kiosk_shell_grab_start_for_touch_move(struct kiosk_shell_surface *shsurf,
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struct weston_touch *touch)
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{
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struct kiosk_shell_grab *shgrab;
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if (!shsurf)
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return KIOSK_SHELL_GRAB_RESULT_ERROR;
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if (shsurf->grabbed ||
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weston_desktop_surface_get_fullscreen(shsurf->desktop_surface) ||
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weston_desktop_surface_get_maximized(shsurf->desktop_surface))
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return KIOSK_SHELL_GRAB_RESULT_IGNORED;
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shgrab = kiosk_shell_grab_create(shsurf);
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if (!shgrab)
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return KIOSK_SHELL_GRAB_RESULT_ERROR;
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shgrab->dx = wl_fixed_from_double(shsurf->view->geometry.x) -
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touch->grab_x;
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shgrab->dy = wl_fixed_from_double(shsurf->view->geometry.y) -
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touch->grab_y;
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shgrab->active = true;
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weston_seat_break_desktop_grabs(touch->seat);
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shgrab->touch_grab.interface = &touch_move_grab_interface;
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weston_touch_start_grab(touch, &shgrab->touch_grab);
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return KIOSK_SHELL_GRAB_RESULT_OK;
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}
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static void
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kiosk_shell_grab_destroy(struct kiosk_shell_grab *shgrab)
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{
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if (shgrab->shsurf) {
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wl_list_remove(&shgrab->shsurf_destroy_listener.link);
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shgrab->shsurf->grabbed = false;
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}
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if (shgrab->pointer_grab.pointer)
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weston_pointer_end_grab(shgrab->pointer_grab.pointer);
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else if (shgrab->touch_grab.touch)
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weston_touch_end_grab(shgrab->touch_grab.touch);
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free(shgrab);
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}
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