889 lines
33 KiB
C
889 lines
33 KiB
C
#undef I3__FILE__
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#define I3__FILE__ "floating.c"
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/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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* © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
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*
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* floating.c: Floating windows.
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*
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*/
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#include "all.h"
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extern xcb_connection_t *conn;
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/*
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* Calculates sum of heights and sum of widths of all currently active outputs
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*
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*/
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static Rect total_outputs_dimensions(void) {
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Output *output;
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/* Use Rect to encapsulate dimensions, ignoring x/y */
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Rect outputs_dimensions = {0, 0, 0, 0};
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TAILQ_FOREACH(output, &outputs, outputs) {
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outputs_dimensions.height += output->rect.height;
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outputs_dimensions.width += output->rect.width;
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}
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return outputs_dimensions;
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}
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/**
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* Called when a floating window is created or resized.
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* This function resizes the window if its size is higher or lower than the
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* configured maximum/minimum size, respectively.
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*
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*/
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void floating_check_size(Con *floating_con) {
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/* Define reasonable minimal and maximal sizes for floating windows */
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const int floating_sane_min_height = 50;
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const int floating_sane_min_width = 75;
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Rect floating_sane_max_dimensions;
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Con *focused_con = con_descend_focused(floating_con);
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/* obey size increments */
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if (focused_con->height_increment || focused_con->width_increment) {
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Rect border_rect = con_border_style_rect(focused_con);
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/* We have to do the opposite calculations that render_con() do
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* to get the exact size we want. */
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border_rect.width = -border_rect.width;
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border_rect.width += 2 * focused_con->border_width;
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border_rect.height = -border_rect.height;
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border_rect.height += 2 * focused_con->border_width;
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if (con_border_style(focused_con) == BS_NORMAL)
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border_rect.height += render_deco_height();
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if (focused_con->height_increment &&
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floating_con->rect.height >= focused_con->base_height + border_rect.height) {
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floating_con->rect.height -= focused_con->base_height + border_rect.height;
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floating_con->rect.height -= floating_con->rect.height % focused_con->height_increment;
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floating_con->rect.height += focused_con->base_height + border_rect.height;
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}
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if (focused_con->width_increment &&
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floating_con->rect.width >= focused_con->base_width + border_rect.width) {
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floating_con->rect.width -= focused_con->base_width + border_rect.width;
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floating_con->rect.width -= floating_con->rect.width % focused_con->width_increment;
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floating_con->rect.width += focused_con->base_width + border_rect.width;
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}
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}
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/* Unless user requests otherwise (-1), ensure width/height do not exceed
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* configured maxima or, if unconfigured, limit to combined width of all
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* outputs */
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if (config.floating_minimum_height != -1) {
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if (config.floating_minimum_height == 0)
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floating_con->rect.height = max(floating_con->rect.height, floating_sane_min_height);
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else
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floating_con->rect.height = max(floating_con->rect.height, config.floating_minimum_height);
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}
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if (config.floating_minimum_width != -1) {
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if (config.floating_minimum_width == 0)
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floating_con->rect.width = max(floating_con->rect.width, floating_sane_min_width);
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else
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floating_con->rect.width = max(floating_con->rect.width, config.floating_minimum_width);
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}
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/* Unless user requests otherwise (-1), raise the width/height to
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* reasonable minimum dimensions */
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floating_sane_max_dimensions = total_outputs_dimensions();
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if (config.floating_maximum_height != -1) {
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if (config.floating_maximum_height == 0)
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floating_con->rect.height = min(floating_con->rect.height, floating_sane_max_dimensions.height);
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else
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floating_con->rect.height = min(floating_con->rect.height, config.floating_maximum_height);
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}
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if (config.floating_maximum_width != -1) {
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if (config.floating_maximum_width == 0)
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floating_con->rect.width = min(floating_con->rect.width, floating_sane_max_dimensions.width);
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else
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floating_con->rect.width = min(floating_con->rect.width, config.floating_maximum_width);
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}
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}
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void floating_enable(Con *con, bool automatic) {
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bool set_focus = (con == focused);
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if (con->parent && con->parent->type == CT_DOCKAREA) {
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LOG("Container is a dock window, not enabling floating mode.\n");
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return;
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}
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if (con_is_floating(con)) {
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LOG("Container is already in floating mode, not doing anything.\n");
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return;
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}
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/* 1: If the container is a workspace container, we need to create a new
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* split-container with the same layout and make that one floating. We
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* cannot touch the workspace container itself because floating containers
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* are children of the workspace. */
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if (con->type == CT_WORKSPACE) {
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LOG("This is a workspace, creating new container around content\n");
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if (con_num_children(con) == 0) {
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LOG("Workspace is empty, aborting\n");
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return;
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}
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/* TODO: refactor this with src/con.c:con_set_layout */
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Con *new = con_new(NULL, NULL);
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new->parent = con;
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new->layout = con->layout;
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/* since the new container will be set into floating mode directly
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* afterwards, we need to copy the workspace rect. */
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memcpy(&(new->rect), &(con->rect), sizeof(Rect));
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Con *old_focused = TAILQ_FIRST(&(con->focus_head));
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if (old_focused == TAILQ_END(&(con->focus_head)))
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old_focused = NULL;
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/* 4: move the existing cons of this workspace below the new con */
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DLOG("Moving cons\n");
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Con *child;
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while (!TAILQ_EMPTY(&(con->nodes_head))) {
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child = TAILQ_FIRST(&(con->nodes_head));
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con_detach(child);
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con_attach(child, new, true);
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}
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/* 4: attach the new split container to the workspace */
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DLOG("Attaching new split to ws\n");
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con_attach(new, con, false);
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if (old_focused)
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con_focus(old_focused);
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con = new;
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set_focus = false;
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}
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/* 1: detach the container from its parent */
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/* TODO: refactor this with tree_close() */
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TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
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TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
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con_fix_percent(con->parent);
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/* 2: create a new container to render the decoration on, add
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* it as a floating window to the workspace */
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Con *nc = con_new(NULL, NULL);
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/* we need to set the parent afterwards instead of passing it as an
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* argument to con_new() because nc would be inserted into the tiling layer
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* otherwise. */
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Con *ws = con_get_workspace(con);
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nc->parent = ws;
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nc->type = CT_FLOATING_CON;
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nc->layout = L_SPLITH;
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/* We insert nc already, even though its rect is not yet calculated. This
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* is necessary because otherwise the workspace might be empty (and get
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* closed in tree_close()) even though it’s not. */
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TAILQ_INSERT_TAIL(&(ws->floating_head), nc, floating_windows);
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TAILQ_INSERT_TAIL(&(ws->focus_head), nc, focused);
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/* check if the parent container is empty and close it if so */
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if ((con->parent->type == CT_CON || con->parent->type == CT_FLOATING_CON) &&
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con_num_children(con->parent) == 0) {
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DLOG("Old container empty after setting this child to floating, closing\n");
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tree_close(con->parent, DONT_KILL_WINDOW, false, false);
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}
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char *name;
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sasprintf(&name, "[i3 con] floatingcon around %p", con);
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x_set_name(nc, name);
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free(name);
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/* find the height for the decorations */
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int deco_height = render_deco_height();
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DLOG("Original rect: (%d, %d) with %d x %d\n", con->rect.x, con->rect.y, con->rect.width, con->rect.height);
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DLOG("Geometry = (%d, %d) with %d x %d\n", con->geometry.x, con->geometry.y, con->geometry.width, con->geometry.height);
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Rect zero = {0, 0, 0, 0};
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nc->rect = con->geometry;
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/* If the geometry was not set (split containers), we need to determine a
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* sensible one by combining the geometry of all children */
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if (memcmp(&(nc->rect), &zero, sizeof(Rect)) == 0) {
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DLOG("Geometry not set, combining children\n");
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Con *child;
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TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
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DLOG("child geometry: %d x %d\n", child->geometry.width, child->geometry.height);
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nc->rect.width += child->geometry.width;
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nc->rect.height = max(nc->rect.height, child->geometry.height);
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}
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}
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floating_check_size(nc);
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/* 3: attach the child to the new parent container. We need to do this
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* because con_border_style_rect() needs to access con->parent. */
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con->parent = nc;
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con->percent = 1.0;
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con->floating = FLOATING_USER_ON;
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/* 4: set the border style as specified with new_float */
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if (automatic)
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con->border_style = config.default_floating_border;
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/* Add pixels for the decoration. */
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Rect border_style_rect = con_border_style_rect(con);
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nc->rect.height -= border_style_rect.height;
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nc->rect.width -= border_style_rect.width;
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/* Add some more pixels for the title bar */
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if (con_border_style(con) == BS_NORMAL)
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nc->rect.height += deco_height;
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/* Honor the X11 border */
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nc->rect.height += con->border_width * 2;
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nc->rect.width += con->border_width * 2;
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/* Some clients (like GIMP’s color picker window) get mapped
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* to (0, 0), so we push them to a reasonable position
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* (centered over their leader) */
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if (nc->rect.x == 0 && nc->rect.y == 0) {
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Con *leader;
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if (con->window && con->window->leader != XCB_NONE &&
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(leader = con_by_window_id(con->window->leader)) != NULL) {
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DLOG("Centering above leader\n");
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nc->rect.x = leader->rect.x + (leader->rect.width / 2) - (nc->rect.width / 2);
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nc->rect.y = leader->rect.y + (leader->rect.height / 2) - (nc->rect.height / 2);
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} else {
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/* center the window on workspace as fallback */
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nc->rect.x = ws->rect.x + (ws->rect.width / 2) - (nc->rect.width / 2);
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nc->rect.y = ws->rect.y + (ws->rect.height / 2) - (nc->rect.height / 2);
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}
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}
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/* Sanity check: Are the coordinates on the appropriate output? If not, we
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* need to change them */
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Output *current_output = get_output_containing(nc->rect.x +
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(nc->rect.width / 2),
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nc->rect.y + (nc->rect.height / 2));
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Con *correct_output = con_get_output(ws);
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if (!current_output || current_output->con != correct_output) {
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DLOG("This floating window is on the wrong output, fixing coordinates (currently (%d, %d))\n",
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nc->rect.x, nc->rect.y);
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/* If moving from one output to another, keep the relative position
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* consistent (e.g. a centered dialog will remain centered). */
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if (current_output)
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floating_fix_coordinates(nc, ¤t_output->con->rect, &correct_output->rect);
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else {
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nc->rect.x = correct_output->rect.x;
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nc->rect.y = correct_output->rect.y;
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}
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}
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DLOG("Floating rect: (%d, %d) with %d x %d\n", nc->rect.x, nc->rect.y, nc->rect.width, nc->rect.height);
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/* 5: Subtract the deco_height in order to make the floating window appear
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* at precisely the position it specified in its original geometry (which
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* is what applications might remember). */
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deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
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nc->rect.y -= deco_height;
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DLOG("Corrected y = %d (deco_height = %d)\n", nc->rect.y, deco_height);
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TAILQ_INSERT_TAIL(&(nc->nodes_head), con, nodes);
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TAILQ_INSERT_TAIL(&(nc->focus_head), con, focused);
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/* render the cons to get initial window_rect correct */
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render_con(nc, false);
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render_con(con, false);
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if (set_focus)
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con_focus(con);
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/* Check if we need to re-assign it to a different workspace because of its
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* coordinates and exit if that was done successfully. */
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if (floating_maybe_reassign_ws(nc)) {
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ipc_send_window_event("floating", con);
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return;
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}
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/* Sanitize coordinates: Check if they are on any output */
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if (get_output_containing(nc->rect.x, nc->rect.y) != NULL) {
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ipc_send_window_event("floating", con);
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return;
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}
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ELOG("No output found at destination coordinates, centering floating window on current ws\n");
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nc->rect.x = ws->rect.x + (ws->rect.width / 2) - (nc->rect.width / 2);
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nc->rect.y = ws->rect.y + (ws->rect.height / 2) - (nc->rect.height / 2);
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ipc_send_window_event("floating", con);
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}
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void floating_disable(Con *con, bool automatic) {
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if (!con_is_floating(con)) {
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LOG("Container isn't floating, not doing anything.\n");
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return;
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}
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const bool set_focus = (con == focused);
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Con *ws = con_get_workspace(con);
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/* 1: detach from parent container */
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TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
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TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
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/* 2: kill parent container */
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TAILQ_REMOVE(&(con->parent->parent->floating_head), con->parent, floating_windows);
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TAILQ_REMOVE(&(con->parent->parent->focus_head), con->parent, focused);
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tree_close(con->parent, DONT_KILL_WINDOW, true, false);
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/* 3: re-attach to the parent of the currently focused con on the workspace
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* this floating con was on */
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Con *focused = con_descend_tiling_focused(ws);
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/* if there is no other container on this workspace, focused will be the
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* workspace itself */
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if (focused->type == CT_WORKSPACE)
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con->parent = focused;
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else
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con->parent = focused->parent;
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/* con_fix_percent will adjust the percent value */
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con->percent = 0.0;
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con->floating = FLOATING_USER_OFF;
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con_attach(con, con->parent, false);
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con_fix_percent(con->parent);
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if (set_focus)
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con_focus(con);
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ipc_send_window_event("floating", con);
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}
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/*
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* Toggles floating mode for the given container.
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*
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* If the automatic flag is set to true, this was an automatic update by a change of the
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* window class from the application which can be overwritten by the user.
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*
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*/
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void toggle_floating_mode(Con *con, bool automatic) {
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/* see if the client is already floating */
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if (con_is_floating(con)) {
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LOG("already floating, re-setting to tiling\n");
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floating_disable(con, automatic);
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return;
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}
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floating_enable(con, automatic);
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}
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/*
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* Raises the given container in the list of floating containers
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*
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*/
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void floating_raise_con(Con *con) {
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DLOG("Raising floating con %p / %s\n", con, con->name);
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TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
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TAILQ_INSERT_TAIL(&(con->parent->floating_head), con, floating_windows);
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}
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/*
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* Checks if con’s coordinates are within its workspace and re-assigns it to
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* the actual workspace if not.
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*
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*/
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bool floating_maybe_reassign_ws(Con *con) {
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Output *output = get_output_containing(
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con->rect.x + (con->rect.width / 2),
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con->rect.y + (con->rect.height / 2));
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if (!output) {
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ELOG("No output found at destination coordinates?\n");
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return false;
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}
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if (con_get_output(con) == output->con) {
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DLOG("still the same ws\n");
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return false;
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}
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DLOG("Need to re-assign!\n");
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Con *content = output_get_content(output->con);
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Con *ws = TAILQ_FIRST(&(content->focus_head));
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DLOG("Moving con %p / %s to workspace %p / %s\n", con, con->name, ws, ws->name);
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con_move_to_workspace(con, ws, false, true);
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con_focus(con_descend_focused(con));
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return true;
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}
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DRAGGING_CB(drag_window_callback) {
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const struct xcb_button_press_event_t *event = extra;
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/* Reposition the client correctly while moving */
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con->rect.x = old_rect->x + (new_x - event->root_x);
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con->rect.y = old_rect->y + (new_y - event->root_y);
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render_con(con, false);
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x_push_node(con);
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xcb_flush(conn);
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/* Check if we cross workspace boundaries while moving */
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if (!floating_maybe_reassign_ws(con))
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return;
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/* Ensure not to warp the pointer while dragging */
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x_set_warp_to(NULL);
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tree_render();
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}
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/*
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* Called when the user clicked on the titlebar of a floating window.
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* Calls the drag_pointer function with the drag_window callback
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*
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*/
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void floating_drag_window(Con *con, const xcb_button_press_event_t *event) {
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DLOG("floating_drag_window\n");
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/* Push changes before dragging, so that the window gets raised now and not
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* after the user releases the mouse button */
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tree_render();
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/* Store the initial rect in case of user revert/cancel */
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Rect initial_rect = con->rect;
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/* Drag the window */
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drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, XCURSOR_CURSOR_MOVE, drag_window_callback, event);
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/* If the user cancelled, undo the changes. */
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if (drag_result == DRAG_REVERT)
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floating_reposition(con, initial_rect);
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||
|
||
/* If this is a scratchpad window, don't auto center it from now on. */
|
||
if (con->scratchpad_state == SCRATCHPAD_FRESH)
|
||
con->scratchpad_state = SCRATCHPAD_CHANGED;
|
||
|
||
tree_render();
|
||
}
|
||
|
||
/*
|
||
* This is an ugly data structure which we need because there is no standard
|
||
* way of having nested functions (only available as a gcc extension at the
|
||
* moment, clang doesn’t support it) or blocks (only available as a clang
|
||
* extension and only on Mac OS X systems at the moment).
|
||
*
|
||
*/
|
||
struct resize_window_callback_params {
|
||
const border_t corner;
|
||
const bool proportional;
|
||
const xcb_button_press_event_t *event;
|
||
};
|
||
|
||
DRAGGING_CB(resize_window_callback) {
|
||
const struct resize_window_callback_params *params = extra;
|
||
const xcb_button_press_event_t *event = params->event;
|
||
border_t corner = params->corner;
|
||
|
||
int32_t dest_x = con->rect.x;
|
||
int32_t dest_y = con->rect.y;
|
||
uint32_t dest_width;
|
||
uint32_t dest_height;
|
||
|
||
double ratio = (double)old_rect->width / old_rect->height;
|
||
|
||
/* First guess: We resize by exactly the amount the mouse moved,
|
||
* taking into account in which corner the client was grabbed */
|
||
if (corner & BORDER_LEFT)
|
||
dest_width = old_rect->width - (new_x - event->root_x);
|
||
else
|
||
dest_width = old_rect->width + (new_x - event->root_x);
|
||
|
||
if (corner & BORDER_TOP)
|
||
dest_height = old_rect->height - (new_y - event->root_y);
|
||
else
|
||
dest_height = old_rect->height + (new_y - event->root_y);
|
||
|
||
/* User wants to keep proportions, so we may have to adjust our values */
|
||
if (params->proportional) {
|
||
dest_width = max(dest_width, (int)(dest_height * ratio));
|
||
dest_height = max(dest_height, (int)(dest_width / ratio));
|
||
}
|
||
|
||
con->rect = (Rect){dest_x, dest_y, dest_width, dest_height};
|
||
|
||
/* Obey window size */
|
||
floating_check_size(con);
|
||
|
||
/* If not the lower right corner is grabbed, we must also reposition
|
||
* the client by exactly the amount we resized it */
|
||
if (corner & BORDER_LEFT)
|
||
dest_x = old_rect->x + (old_rect->width - con->rect.width);
|
||
|
||
if (corner & BORDER_TOP)
|
||
dest_y = old_rect->y + (old_rect->height - con->rect.height);
|
||
|
||
con->rect.x = dest_x;
|
||
con->rect.y = dest_y;
|
||
|
||
/* TODO: don’t re-render the whole tree just because we change
|
||
* coordinates of a floating window */
|
||
tree_render();
|
||
x_push_changes(croot);
|
||
}
|
||
|
||
/*
|
||
* Called when the user clicked on a floating window while holding the
|
||
* floating_modifier and the right mouse button.
|
||
* Calls the drag_pointer function with the resize_window callback
|
||
*
|
||
*/
|
||
void floating_resize_window(Con *con, const bool proportional,
|
||
const xcb_button_press_event_t *event) {
|
||
DLOG("floating_resize_window\n");
|
||
|
||
/* corner saves the nearest corner to the original click. It contains
|
||
* a bitmask of the nearest borders (BORDER_LEFT, BORDER_RIGHT, …) */
|
||
border_t corner = 0;
|
||
|
||
if (event->event_x <= (int16_t)(con->rect.width / 2))
|
||
corner |= BORDER_LEFT;
|
||
else
|
||
corner |= BORDER_RIGHT;
|
||
|
||
int cursor = 0;
|
||
if (event->event_y <= (int16_t)(con->rect.height / 2)) {
|
||
corner |= BORDER_TOP;
|
||
cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_TOP_LEFT_CORNER : XCURSOR_CURSOR_TOP_RIGHT_CORNER;
|
||
} else {
|
||
corner |= BORDER_BOTTOM;
|
||
cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_BOTTOM_LEFT_CORNER : XCURSOR_CURSOR_BOTTOM_RIGHT_CORNER;
|
||
}
|
||
|
||
struct resize_window_callback_params params = {corner, proportional, event};
|
||
|
||
/* get the initial rect in case of revert/cancel */
|
||
Rect initial_rect = con->rect;
|
||
|
||
drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, cursor, resize_window_callback, ¶ms);
|
||
|
||
/* If the user cancels, undo the resize */
|
||
if (drag_result == DRAG_REVERT)
|
||
floating_reposition(con, initial_rect);
|
||
|
||
/* If this is a scratchpad window, don't auto center it from now on. */
|
||
if (con->scratchpad_state == SCRATCHPAD_FRESH)
|
||
con->scratchpad_state = SCRATCHPAD_CHANGED;
|
||
}
|
||
|
||
/* As endorsed by “ASSOCIATING CUSTOM DATA WITH A WATCHER” in ev(3) */
|
||
struct drag_x11_cb {
|
||
ev_check check;
|
||
|
||
/* Whether this modal event loop should be exited and with which result. */
|
||
drag_result_t result;
|
||
|
||
/* The container that is being dragged or resized, or NULL if this is a
|
||
* drag of the resize handle. */
|
||
Con *con;
|
||
|
||
/* The dimensions of con when the loop was started. */
|
||
Rect old_rect;
|
||
|
||
/* The callback to invoke after every pointer movement. */
|
||
callback_t callback;
|
||
|
||
/* User data pointer for callback. */
|
||
const void *extra;
|
||
};
|
||
|
||
static void xcb_drag_check_cb(EV_P_ ev_check *w, int revents) {
|
||
struct drag_x11_cb *dragloop = (struct drag_x11_cb *)w;
|
||
xcb_motion_notify_event_t *last_motion_notify = NULL;
|
||
xcb_generic_event_t *event;
|
||
|
||
while ((event = xcb_poll_for_event(conn)) != NULL) {
|
||
if (event->response_type == 0) {
|
||
xcb_generic_error_t *error = (xcb_generic_error_t *)event;
|
||
DLOG("X11 Error received (probably harmless)! sequence 0x%x, error_code = %d\n",
|
||
error->sequence, error->error_code);
|
||
free(event);
|
||
continue;
|
||
}
|
||
|
||
/* Strip off the highest bit (set if the event is generated) */
|
||
int type = (event->response_type & 0x7F);
|
||
|
||
switch (type) {
|
||
case XCB_BUTTON_RELEASE:
|
||
dragloop->result = DRAG_SUCCESS;
|
||
break;
|
||
|
||
case XCB_KEY_PRESS:
|
||
DLOG("A key was pressed during drag, reverting changes.");
|
||
dragloop->result = DRAG_REVERT;
|
||
handle_event(type, event);
|
||
break;
|
||
|
||
case XCB_UNMAP_NOTIFY: {
|
||
xcb_unmap_notify_event_t *unmap_event = (xcb_unmap_notify_event_t *)event;
|
||
Con *con = con_by_window_id(unmap_event->window);
|
||
|
||
if (con != NULL) {
|
||
DLOG("UnmapNotify for window 0x%08x (container %p)\n", unmap_event->window, con);
|
||
|
||
if (con_get_workspace(con) == con_get_workspace(focused)) {
|
||
DLOG("UnmapNotify for a managed window on the current workspace, aborting\n");
|
||
dragloop->result = DRAG_ABORT;
|
||
}
|
||
}
|
||
|
||
handle_event(type, event);
|
||
break;
|
||
}
|
||
|
||
case XCB_MOTION_NOTIFY:
|
||
/* motion_notify events are saved for later */
|
||
FREE(last_motion_notify);
|
||
last_motion_notify = (xcb_motion_notify_event_t *)event;
|
||
break;
|
||
|
||
default:
|
||
DLOG("Passing to original handler\n");
|
||
handle_event(type, event);
|
||
break;
|
||
}
|
||
|
||
if (last_motion_notify != (xcb_motion_notify_event_t *)event)
|
||
free(event);
|
||
|
||
if (dragloop->result != DRAGGING)
|
||
return;
|
||
}
|
||
|
||
if (last_motion_notify == NULL)
|
||
return;
|
||
|
||
dragloop->callback(
|
||
dragloop->con,
|
||
&(dragloop->old_rect),
|
||
last_motion_notify->root_x,
|
||
last_motion_notify->root_y,
|
||
dragloop->extra);
|
||
free(last_motion_notify);
|
||
}
|
||
|
||
/*
|
||
* This function grabs your pointer and keyboard and lets you drag stuff around
|
||
* (borders). Every time you move your mouse, an XCB_MOTION_NOTIFY event will
|
||
* be received and the given callback will be called with the parameters
|
||
* specified (client, border on which the click originally was), the original
|
||
* rect of the client, the event and the new coordinates (x, y).
|
||
*
|
||
*/
|
||
drag_result_t drag_pointer(Con *con, const xcb_button_press_event_t *event, xcb_window_t
|
||
confine_to,
|
||
border_t border, int cursor, callback_t callback, const void *extra) {
|
||
xcb_cursor_t xcursor = (cursor && xcursor_supported) ? xcursor_get_cursor(cursor) : XCB_NONE;
|
||
|
||
/* Grab the pointer */
|
||
xcb_grab_pointer_cookie_t cookie;
|
||
xcb_grab_pointer_reply_t *reply;
|
||
xcb_generic_error_t *error;
|
||
|
||
cookie = xcb_grab_pointer(conn,
|
||
false, /* get all pointer events specified by the following mask */
|
||
root, /* grab the root window */
|
||
XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION, /* which events to let through */
|
||
XCB_GRAB_MODE_ASYNC, /* pointer events should continue as normal */
|
||
XCB_GRAB_MODE_ASYNC, /* keyboard mode */
|
||
confine_to, /* confine_to = in which window should the cursor stay */
|
||
xcursor, /* possibly display a special cursor */
|
||
XCB_CURRENT_TIME);
|
||
|
||
if ((reply = xcb_grab_pointer_reply(conn, cookie, &error)) == NULL) {
|
||
ELOG("Could not grab pointer (error_code = %d)\n", error->error_code);
|
||
free(error);
|
||
return DRAG_ABORT;
|
||
}
|
||
|
||
free(reply);
|
||
|
||
/* Grab the keyboard */
|
||
xcb_grab_keyboard_cookie_t keyb_cookie;
|
||
xcb_grab_keyboard_reply_t *keyb_reply;
|
||
|
||
keyb_cookie = xcb_grab_keyboard(conn,
|
||
false, /* get all keyboard events */
|
||
root, /* grab the root window */
|
||
XCB_CURRENT_TIME,
|
||
XCB_GRAB_MODE_ASYNC, /* continue processing pointer events as normal */
|
||
XCB_GRAB_MODE_ASYNC /* keyboard mode */
|
||
);
|
||
|
||
if ((keyb_reply = xcb_grab_keyboard_reply(conn, keyb_cookie, &error)) == NULL) {
|
||
ELOG("Could not grab keyboard (error_code = %d)\n", error->error_code);
|
||
free(error);
|
||
xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
|
||
return DRAG_ABORT;
|
||
}
|
||
|
||
free(keyb_reply);
|
||
|
||
/* Go into our own event loop */
|
||
struct drag_x11_cb loop = {
|
||
.result = DRAGGING,
|
||
.con = con,
|
||
.callback = callback,
|
||
.extra = extra,
|
||
};
|
||
if (con)
|
||
loop.old_rect = con->rect;
|
||
ev_check_init(&loop.check, xcb_drag_check_cb);
|
||
main_set_x11_cb(false);
|
||
ev_check_start(main_loop, &loop.check);
|
||
|
||
while (loop.result == DRAGGING)
|
||
ev_run(main_loop, EVRUN_ONCE);
|
||
|
||
ev_check_stop(main_loop, &loop.check);
|
||
main_set_x11_cb(true);
|
||
|
||
xcb_ungrab_keyboard(conn, XCB_CURRENT_TIME);
|
||
xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
|
||
xcb_flush(conn);
|
||
|
||
return loop.result;
|
||
}
|
||
|
||
/*
|
||
* Repositions the CT_FLOATING_CON to have the coordinates specified by
|
||
* newrect, but only if the coordinates are not out-of-bounds. Also reassigns
|
||
* the floating con to a different workspace if this move was across different
|
||
* outputs.
|
||
*
|
||
*/
|
||
void floating_reposition(Con *con, Rect newrect) {
|
||
/* Sanity check: Are the new coordinates on any output? If not, we
|
||
* ignore that request. */
|
||
if (!contained_by_output(newrect)) {
|
||
ELOG("No output found at destination coordinates. Not repositioning.\n");
|
||
return;
|
||
}
|
||
|
||
con->rect = newrect;
|
||
|
||
floating_maybe_reassign_ws(con);
|
||
|
||
/* If this is a scratchpad window, don't auto center it from now on. */
|
||
if (con->scratchpad_state == SCRATCHPAD_FRESH)
|
||
con->scratchpad_state = SCRATCHPAD_CHANGED;
|
||
|
||
tree_render();
|
||
}
|
||
|
||
/*
|
||
* Fixes the coordinates of the floating window whenever the window gets
|
||
* reassigned to a different output (or when the output’s rect changes).
|
||
*
|
||
*/
|
||
void floating_fix_coordinates(Con *con, Rect *old_rect, Rect *new_rect) {
|
||
DLOG("Fixing coordinates of floating window %p (rect (%d, %d), %d x %d)\n",
|
||
con, con->rect.x, con->rect.y, con->rect.width, con->rect.height);
|
||
DLOG("old_rect = (%d, %d), %d x %d\n",
|
||
old_rect->x, old_rect->y, old_rect->width, old_rect->height);
|
||
DLOG("new_rect = (%d, %d), %d x %d\n",
|
||
new_rect->x, new_rect->y, new_rect->width, new_rect->height);
|
||
/* First we get the x/y coordinates relative to the x/y coordinates
|
||
* of the output on which the window is on */
|
||
int32_t rel_x = con->rect.x - old_rect->x + (int32_t)(con->rect.width / 2);
|
||
int32_t rel_y = con->rect.y - old_rect->y + (int32_t)(con->rect.height / 2);
|
||
/* Then we calculate a fraction, for example 0.63 for a window
|
||
* which is at y = 1212 of a 1920 px high output */
|
||
DLOG("rel_x = %d, rel_y = %d, fraction_x = %f, fraction_y = %f, output->w = %d, output->h = %d\n",
|
||
rel_x, rel_y, (double)rel_x / old_rect->width, (double)rel_y / old_rect->height,
|
||
old_rect->width, old_rect->height);
|
||
/* Here we have to multiply at first. Or we will lose precision when not compiled with -msse2 */
|
||
con->rect.x = (int32_t)new_rect->x + (double)(rel_x * (int32_t)new_rect->width) / (int32_t)old_rect->width - (int32_t)(con->rect.width / 2);
|
||
con->rect.y = (int32_t)new_rect->y + (double)(rel_y * (int32_t)new_rect->height) / (int32_t)old_rect->height - (int32_t)(con->rect.height / 2);
|
||
DLOG("Resulting coordinates: x = %d, y = %d\n", con->rect.x, con->rect.y);
|
||
}
|
||
|
||
#if 0
|
||
/*
|
||
* Moves the client 10px to the specified direction.
|
||
*
|
||
*/
|
||
void floating_move(xcb_connection_t *conn, Client *currently_focused, direction_t direction) {
|
||
DLOG("floating move\n");
|
||
|
||
Rect destination = currently_focused->rect;
|
||
Rect *screen = &(currently_focused->workspace->output->rect);
|
||
|
||
switch (direction) {
|
||
case D_LEFT:
|
||
destination.x -= 10;
|
||
break;
|
||
case D_RIGHT:
|
||
destination.x += 10;
|
||
break;
|
||
case D_UP:
|
||
destination.y -= 10;
|
||
break;
|
||
case D_DOWN:
|
||
destination.y += 10;
|
||
break;
|
||
/* to make static analyzers happy */
|
||
default:
|
||
break;
|
||
}
|
||
|
||
/* Prevent windows from vanishing completely */
|
||
if ((int32_t)(destination.x + destination.width - 5) <= (int32_t)screen->x ||
|
||
(int32_t)(destination.x + 5) >= (int32_t)(screen->x + screen->width) ||
|
||
(int32_t)(destination.y + destination.height - 5) <= (int32_t)screen->y ||
|
||
(int32_t)(destination.y + 5) >= (int32_t)(screen->y + screen->height)) {
|
||
DLOG("boundary check failed, not moving\n");
|
||
return;
|
||
}
|
||
|
||
currently_focused->rect = destination;
|
||
reposition_client(conn, currently_focused);
|
||
|
||
/* Because reposition_client does not send a faked configure event (only resize does),
|
||
* we need to initiate that on our own */
|
||
fake_absolute_configure_notify(conn, currently_focused);
|
||
/* fake_absolute_configure_notify flushes */
|
||
}
|
||
|
||
/*
|
||
* Hides all floating clients (or show them if they are currently hidden) on
|
||
* the specified workspace.
|
||
*
|
||
*/
|
||
void floating_toggle_hide(xcb_connection_t *conn, Workspace *workspace) {
|
||
Client *client;
|
||
|
||
workspace->floating_hidden = !workspace->floating_hidden;
|
||
DLOG("floating_hidden is now: %d\n", workspace->floating_hidden);
|
||
TAILQ_FOREACH(client, &(workspace->floating_clients), floating_clients) {
|
||
if (workspace->floating_hidden)
|
||
client_unmap(conn, client);
|
||
else client_map(conn, client);
|
||
}
|
||
|
||
/* If we just unmapped all floating windows we should ensure that the focus
|
||
* is set correctly, that ist, to the first non-floating client in stack */
|
||
if (workspace->floating_hidden)
|
||
SLIST_FOREACH(client, &(workspace->focus_stack), focus_clients) {
|
||
if (client_is_floating(client))
|
||
continue;
|
||
set_focus(conn, client, true);
|
||
return;
|
||
}
|
||
|
||
xcb_flush(conn);
|
||
}
|
||
#endif
|