<commit_before>/*
 * vim:ts=8:expandtab
 *
 * i3 - an improved dynamic tiling window manager
 *
 * © 2009 <NAME> and contributors
 *
 * See file LICENSE for license information.
 *
 * This file contains the functions for resizing table columns/rows because
 * it’s actually lots of work, compared to the other handlers.
 *
 */
#include <stdlib.h>
#include <assert.h>

#include <xcb/xcb.h>
#include <xcb/xcb_event.h>

#include "i3.h"
#include "data.h"
#include "resize.h"
#include "util.h"
#include "xcb.h"
#include "debug.h"
#include "layout.h"

/*
 * Renders the resize window between the first/second container and resizes
 * the table column/row.
 *
 */
int resize_graphical_handler(xcb_connection_t *conn, Workspace *ws, int first, int second,
                             resize_orientation_t orientation, xcb_button_press_event_t *event) {
        int new_position;
        xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
        xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;

        /* FIXME: horizontal resizing causes empty spaces to exist */
        if (orientation == O_HORIZONTAL) {
                LOG("Sorry, horizontal resizing is not yet activated due to creating layout bugs."
                    "If you are brave, enable the code for yourself and try fixing it.\n");
                return 1;
        }

        uint32_t mask = 0;
        uint32_t values[2];

        mask = XCB_CW_OVERRIDE_REDIRECT;
        values[0] = 1;

        /* Open a new window, the resizebar. Grab the pointer and move the window around
           as the user moves the pointer. */
        Rect grabrect = {0, 0, root_screen->width_in_pixels, root_screen->height_in_pixels};
        xcb_window_t grabwin = create_window(conn, grabrect, XCB_WINDOW_CLASS_INPUT_ONLY, -1, mask, values);

        Rect helprect;
        if (orientation == O_VERTICAL) {
                helprect.x = event->root_x;
                helprect.y = 0;
                helprect.width = 2;
                helprect.height = root_screen->height_in_pixels;
                new_position = event->root_x;
        } else {
                helprect.x = 0;
                helprect.y = event->root_y;
                helprect.width = root_screen->width_in_pixels;
                helprect.height = 2;
                new_position = event->root_y;
        }

        mask = XCB_CW_BACK_PIXEL;
        values[0] = get_colorpixel(conn, "#4c7899");

        mask |= XCB_CW_OVERRIDE_REDIRECT;
        values[1] = 1;

        xcb_window_t helpwin = create_window(conn, helprect, XCB_WINDOW_CLASS_INPUT_OUTPUT,
                                             (orientation == O_VERTICAL ?
                                              XCB_CURSOR_SB_V_DOUBLE_ARROW :
                                              XCB_CURSOR_SB_H_DOUBLE_ARROW), mask, values);

        xcb_circulate_window(conn, XCB_CIRCULATE_RAISE_LOWEST, helpwin);

        xcb_grab_pointer(conn, false, root, XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION,
                        XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, grabwin, XCB_NONE, XCB_CURRENT_TIME);

        xcb_flush(conn);

        xcb_generic_event_t *inside_event;
        /* I’ve always wanted to have my own eventhandler… */
        while ((inside_event = xcb_wait_for_event(conn))) {
                /* Same as get_event_handler in xcb */
                int nr = inside_event->response_type;
                if (nr == 0) {
                        /* An error occured */
                        handle_event(NULL, conn, inside_event);
                        free(inside_event);
                        continue;
                }
                assert(nr < 256);
                nr &= XCB_EVENT_RESPONSE_TYPE_MASK;
                assert(nr >= 2);

                /* Check if we need to escape this loop */
                if (nr == XCB_BUTTON_RELEASE)
                        break;

                switch (nr) {
                        case XCB_MOTION_NOTIFY:
                                if (orientation == O_VERTICAL) {
                                        values[0] = new_position = ((xcb_motion_notify_event_t*)inside_event)->root_x;
                                        xcb_configure_window(conn, helpwin, XCB_CONFIG_WINDOW_X, values);
                                } else {
                                        values[0] = new_position = ((xcb_motion_notify_event_t*)inside_event)->root_y;
                                        xcb_configure_window(conn, helpwin, XCB_CONFIG_WINDOW_Y, values);
                                }

                                xcb_flush(conn);
                                break;<commit_msg>Bugfix: resizing: boundary checking (Thanks Mirko)<commit_after>/*
 * vim:ts=8:expandtab
 *
 * i3 - an improved dynamic tiling window manager
 *
 * © 2009 <NAME> and contributors
 *
 * See file LICENSE for license information.
 *
 * This file contains the functions for resizing table columns/rows because
 * it’s actually lots of work, compared to the other handlers.
 *
 */
#include <stdlib.h>
#include <assert.h>

#include <xcb/xcb.h>
#include <xcb/xcb_event.h>

#include "i3.h"
#include "data.h"
#include "resize.h"
#include "util.h"
#include "xcb.h"
#include "debug.h"
#include "layout.h"
#include "xinerama.h"
#include "config.h"

/*
 * Renders the resize window between the first/second container and resizes
 * the table column/row.
 *
 */
int resize_graphical_handler(xcb_connection_t *conn, Workspace *ws, int first, int second,
                             resize_orientation_t orientation, xcb_button_press_event_t *event) {
        int new_position;
        xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
        xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;
        i3Screen *screen = get_screen_containing(event->root_x, event->root_y);
        if (screen == NULL) {
                LOG("BUG: No screen found at this position (%d, %d)\n", event->root_x, event->root_y);
                return 1;
        }

        LOG("Screen dimensions: (%d, %d) %d x %d\n", screen->rect.x, screen->rect.y, screen->rect.width, screen->rect.height);

        /* FIXME: horizontal resizing causes empty spaces to exist */
        if (orientation == O_HORIZONTAL) {
                LOG("Sorry, horizontal resizing is not yet activated due to creating layout bugs."
                    "If you are brave, enable the code for yourself and try fixing it.\n");
                return 1;
        }

        uint32_t mask = 0;
        uint32_t values[2];

        mask = XCB_CW_OVERRIDE_REDIRECT;
        values[0] = 1;

        /* Open a new window, the resizebar. Grab the pointer and move the window around
           as the user moves the pointer. */
        Rect grabrect = {0, 0, root_screen->width_in_pixels, root_screen->height_in_pixels};
        xcb_window_t grabwin = create_window(conn, grabrect, XCB_WINDOW_CLASS_INPUT_ONLY, -1, mask, values);

        Rect helprect;
        if (orientation == O_VERTICAL) {
                helprect.x = event->root_x;
                helprect.y = screen->rect.y;
                helprect.width = 2;
                helprect.height = screen->rect.height;
                new_position = event->root_x;
        } else {
                helprect.x = 0;
                helprect.y = event->root_y;
                helprect.width = root_screen->width_in_pixels;
                helprect.height = 2;
                new_position = event->root_y;
        }

        mask = XCB_CW_BACK_PIXEL;
        values[0] = config.client.focused.border;

        mask |= XCB_CW_OVERRIDE_REDIRECT;
        values[1] = 1;

        xcb_window_t helpwin = create_window(conn, helprect, XCB_WINDOW_CLASS_INPUT_OUTPUT,
                                             (orientation == O_VERTICAL ?
                                              XCB_CURSOR_SB_V_DOUBLE_ARROW :
                                              XCB_CURSOR_SB_H_DOUBLE_ARROW), mask, values);

        xcb_circulate_window(conn, XCB_CIRCULATE_RAISE_LOWEST, helpwin);

        xcb_grab_pointer(conn, false, root, XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION,
                        XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, grabwin, XCB_NONE, XCB_CURRENT_TIME);

        xcb_flush(conn);

        xcb_generic_event_t *inside_event;
        /* I’ve always wanted to have my own eventhandler… */
        while ((inside_event = xcb_wait_for_event(conn))) {
                /* Same as get_event_handler in xcb */
                int nr = inside_event->response_type;
                if (nr == 0) {
                        /* An error occured */
                        handle_event(NULL, conn, inside_event);
                        free(inside_event);
                        continue;
                }
                assert(nr < 256);
                nr &= XCB_EVENT_RESPONSE_TYPE_MASK;
                assert(nr >= 2);

                /* Check if we need to escape this loop */
                if (nr == XCB_BUTTON_RELEASE)
                        break;

                switch (nr) {
                        case XCB_MOTION_NOTIFY: {
                                xcb_motion_notify_event_t *motion_event = (xcb_motion_notify_event_t*)inside_event;
                                if (orientation == O_VERTICAL) {
                                        if (motion_event->root_x < (screen->rect.x + screen->rect.width) &&
                                            motion_event->root_x > screen->rect.x) {
                                                values[0] = new_position = ((xcb_motion_notify_event_t*)inside_event)->root_x;
                                                xcb_configure_window(conn, helpwin, XCB_CONFIG_WINDOW_X, values);
                                        } else {
                                                LOG("Ignoring new position\n");
                                        }
                                } else {
                                        values[0] = new_position = ((xcb_motion_notify_event_t*)inside_event)->root_y;
                                        xcb_configure_window(conn, helpwin, XCB_CONFIG_WINDOW_Y, values);
                                }

                                xcb_flush(conn);
                                break;
                        }
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