878 lines
31 KiB
C
878 lines
31 KiB
C
#undef I3__FILE__
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#define I3__FILE__ "randr.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 Michael Stapelberg and contributors (see also: LICENSE)
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*
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* For more information on RandR, please see the X.org RandR specification at
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* http://cgit.freedesktop.org/xorg/proto/randrproto/tree/randrproto.txt
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* (take your time to read it completely, it answers all questions).
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*
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*/
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#include "all.h"
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#include <time.h>
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#include <xcb/randr.h>
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/* While a clean namespace is usually a pretty good thing, we really need
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* to use shorter names than the whole xcb_randr_* default names. */
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typedef xcb_randr_get_crtc_info_reply_t crtc_info;
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typedef xcb_randr_get_screen_resources_current_reply_t resources_reply;
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/* Pointer to the result of the query for primary output */
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xcb_randr_get_output_primary_reply_t *primary;
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/* Stores all outputs available in your current session. */
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struct outputs_head outputs = TAILQ_HEAD_INITIALIZER(outputs);
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static bool randr_disabled = false;
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/*
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* Get a specific output by its internal X11 id. Used by randr_query_outputs
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* to check if the output is new (only in the first scan) or if we are
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* re-scanning.
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*
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*/
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static Output *get_output_by_id(xcb_randr_output_t id) {
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Output *output;
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TAILQ_FOREACH(output, &outputs, outputs)
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if (output->id == id)
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return output;
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return NULL;
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}
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/*
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* Returns the output with the given name if it is active (!) or NULL.
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*
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*/
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Output *get_output_by_name(const char *name) {
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Output *output;
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TAILQ_FOREACH(output, &outputs, outputs)
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if (output->active &&
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strcasecmp(output->name, name) == 0)
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return output;
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return NULL;
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}
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/*
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* Returns the first output which is active.
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*
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*/
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Output *get_first_output(void) {
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Output *output;
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TAILQ_FOREACH(output, &outputs, outputs)
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if (output->active)
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return output;
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return NULL;
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}
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/*
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* Returns the active (!) output which contains the coordinates x, y or NULL
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* if there is no output which contains these coordinates.
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*
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*/
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Output *get_output_containing(unsigned int x, unsigned int y) {
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Output *output;
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TAILQ_FOREACH(output, &outputs, outputs) {
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if (!output->active)
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continue;
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DLOG("comparing x=%d y=%d with x=%d and y=%d width %d height %d\n",
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x, y, output->rect.x, output->rect.y, output->rect.width, output->rect.height);
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if (x >= output->rect.x && x < (output->rect.x + output->rect.width) &&
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y >= output->rect.y && y < (output->rect.y + output->rect.height))
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return output;
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}
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return NULL;
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}
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/*
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* In contained_by_output, we check if any active output contains part of the container.
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* We do this by checking if the output rect is intersected by the Rect.
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* This is the 2-dimensional counterpart of get_output_containing.
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* Since we don't actually need the outputs intersected by the given Rect (There could
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* be many), we just return true or false for convenience.
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*
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*/
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bool contained_by_output(Rect rect) {
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Output *output;
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int lx = rect.x, uy = rect.y;
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int rx = rect.x + rect.width, by = rect.y + rect.height;
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TAILQ_FOREACH(output, &outputs, outputs) {
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if (!output->active)
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continue;
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DLOG("comparing x=%d y=%d with x=%d and y=%d width %d height %d\n",
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rect.x, rect.y, output->rect.x, output->rect.y, output->rect.width, output->rect.height);
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if (rx >= (int)output->rect.x && lx <= (int)(output->rect.x + output->rect.width) &&
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by >= (int)output->rect.y && uy <= (int)(output->rect.y + output->rect.height))
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return true;
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}
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return false;
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}
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/*
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* Like get_output_next with close_far == CLOSEST_OUTPUT, but wraps.
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*
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* For example if get_output_next(D_DOWN, x, FARTHEST_OUTPUT) = NULL, then
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* get_output_next_wrap(D_DOWN, x) will return the topmost output.
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*
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* This function always returns a output: if no active outputs can be found,
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* current itself is returned.
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*
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*/
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Output *get_output_next_wrap(direction_t direction, Output *current) {
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Output *best = get_output_next(direction, current, CLOSEST_OUTPUT);
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/* If no output can be found, wrap */
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if (!best) {
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direction_t opposite;
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if (direction == D_RIGHT)
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opposite = D_LEFT;
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else if (direction == D_LEFT)
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opposite = D_RIGHT;
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else if (direction == D_DOWN)
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opposite = D_UP;
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else
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opposite = D_DOWN;
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best = get_output_next(opposite, current, FARTHEST_OUTPUT);
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}
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if (!best)
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best = current;
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DLOG("current = %s, best = %s\n", current->name, best->name);
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return best;
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}
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/*
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* Gets the output which is the next one in the given direction.
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*
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* If close_far == CLOSEST_OUTPUT, then the output next to the current one will
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* selected. If close_far == FARTHEST_OUTPUT, the output which is the last one
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* in the given direction will be selected.
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*
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* NULL will be returned when no active outputs are present in the direction
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* specified (note that “current” counts as such an output).
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*
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*/
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Output *get_output_next(direction_t direction, Output *current, output_close_far_t close_far) {
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Rect *cur = &(current->rect),
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*other;
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Output *output,
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*best = NULL;
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TAILQ_FOREACH(output, &outputs, outputs) {
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if (!output->active)
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continue;
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other = &(output->rect);
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if ((direction == D_RIGHT && other->x > cur->x) ||
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(direction == D_LEFT && other->x < cur->x)) {
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/* Skip the output when it doesn’t overlap the other one’s y
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* coordinate at all. */
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if ((other->y + other->height) <= cur->y ||
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(cur->y + cur->height) <= other->y)
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continue;
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} else if ((direction == D_DOWN && other->y > cur->y) ||
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(direction == D_UP && other->y < cur->y)) {
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/* Skip the output when it doesn’t overlap the other one’s x
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* coordinate at all. */
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if ((other->x + other->width) <= cur->x ||
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(cur->x + cur->width) <= other->x)
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continue;
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} else
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continue;
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/* No candidate yet? Start with this one. */
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if (!best) {
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best = output;
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continue;
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}
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if (close_far == CLOSEST_OUTPUT) {
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/* Is this output better (closer to the current output) than our
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* current best bet? */
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if ((direction == D_RIGHT && other->x < best->rect.x) ||
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(direction == D_LEFT && other->x > best->rect.x) ||
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(direction == D_DOWN && other->y < best->rect.y) ||
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(direction == D_UP && other->y > best->rect.y)) {
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best = output;
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continue;
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}
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} else {
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/* Is this output better (farther to the current output) than our
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* current best bet? */
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if ((direction == D_RIGHT && other->x > best->rect.x) ||
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(direction == D_LEFT && other->x < best->rect.x) ||
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(direction == D_DOWN && other->y > best->rect.y) ||
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(direction == D_UP && other->y < best->rect.y)) {
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best = output;
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continue;
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}
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}
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}
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DLOG("current = %s, best = %s\n", current->name, (best ? best->name : "NULL"));
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return best;
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}
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/*
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* Disables RandR support by creating exactly one output with the size of the
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* X11 screen.
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*
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*/
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void disable_randr(xcb_connection_t *conn) {
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DLOG("RandR extension unusable, disabling.\n");
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Output *s = scalloc(sizeof(Output));
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s->active = true;
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s->rect.x = 0;
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s->rect.y = 0;
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s->rect.width = root_screen->width_in_pixels;
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s->rect.height = root_screen->height_in_pixels;
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s->name = "xroot-0";
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output_init_con(s);
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init_ws_for_output(s, output_get_content(s->con));
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TAILQ_INSERT_TAIL(&outputs, s, outputs);
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randr_disabled = true;
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}
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/*
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* Initializes a CT_OUTPUT Con (searches existing ones from inplace restart
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* before) to use for the given Output.
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*
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*/
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void output_init_con(Output *output) {
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Con *con = NULL, *current;
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bool reused = false;
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DLOG("init_con for output %s\n", output->name);
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/* Search for a Con with that name directly below the root node. There
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* might be one from a restored layout. */
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TAILQ_FOREACH(current, &(croot->nodes_head), nodes) {
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if (strcmp(current->name, output->name) != 0)
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continue;
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con = current;
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reused = true;
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DLOG("Using existing con %p / %s\n", con, con->name);
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break;
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}
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if (con == NULL) {
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con = con_new(croot, NULL);
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FREE(con->name);
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con->name = sstrdup(output->name);
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con->type = CT_OUTPUT;
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con->layout = L_OUTPUT;
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con_fix_percent(croot);
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}
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con->rect = output->rect;
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output->con = con;
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char *name;
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sasprintf(&name, "[i3 con] output %s", con->name);
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x_set_name(con, name);
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FREE(name);
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if (reused) {
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DLOG("Not adding workspace, this was a reused con\n");
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return;
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}
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DLOG("Changing layout, adding top/bottom dockarea\n");
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Con *topdock = con_new(NULL, NULL);
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topdock->type = CT_DOCKAREA;
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topdock->layout = L_DOCKAREA;
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/* this container swallows dock clients */
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Match *match = scalloc(sizeof(Match));
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match_init(match);
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match->dock = M_DOCK_TOP;
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match->insert_where = M_BELOW;
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TAILQ_INSERT_TAIL(&(topdock->swallow_head), match, matches);
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FREE(topdock->name);
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topdock->name = sstrdup("topdock");
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sasprintf(&name, "[i3 con] top dockarea %s", con->name);
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x_set_name(topdock, name);
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FREE(name);
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DLOG("attaching\n");
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con_attach(topdock, con, false);
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/* content container */
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DLOG("adding main content container\n");
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Con *content = con_new(NULL, NULL);
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content->type = CT_CON;
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content->layout = L_SPLITH;
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FREE(content->name);
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content->name = sstrdup("content");
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sasprintf(&name, "[i3 con] content %s", con->name);
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x_set_name(content, name);
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FREE(name);
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con_attach(content, con, false);
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/* bottom dock container */
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Con *bottomdock = con_new(NULL, NULL);
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bottomdock->type = CT_DOCKAREA;
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bottomdock->layout = L_DOCKAREA;
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/* this container swallows dock clients */
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match = scalloc(sizeof(Match));
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match_init(match);
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match->dock = M_DOCK_BOTTOM;
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match->insert_where = M_BELOW;
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TAILQ_INSERT_TAIL(&(bottomdock->swallow_head), match, matches);
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FREE(bottomdock->name);
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bottomdock->name = sstrdup("bottomdock");
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sasprintf(&name, "[i3 con] bottom dockarea %s", con->name);
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x_set_name(bottomdock, name);
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FREE(name);
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DLOG("attaching\n");
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con_attach(bottomdock, con, false);
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}
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/*
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* Initializes at least one workspace for this output, trying the following
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* steps until there is at least one workspace:
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*
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* • Move existing workspaces, which are assigned to be on the given output, to
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* the output.
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* • Create the first assigned workspace for this output.
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* • Create the first unused workspace.
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*
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*/
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void init_ws_for_output(Output *output, Con *content) {
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/* go through all assignments and move the existing workspaces to this output */
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struct Workspace_Assignment *assignment;
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TAILQ_FOREACH(assignment, &ws_assignments, ws_assignments) {
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if (strcmp(assignment->output, output->name) != 0)
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continue;
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/* check if this workspace actually exists */
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Con *workspace = NULL, *out;
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TAILQ_FOREACH(out, &(croot->nodes_head), nodes)
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GREP_FIRST(workspace, output_get_content(out),
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!strcasecmp(child->name, assignment->name));
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if (workspace == NULL)
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continue;
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/* check that this workspace is not already attached (that means the
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* user configured this assignment twice) */
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Con *workspace_out = con_get_output(workspace);
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if (workspace_out == output->con) {
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LOG("Workspace \"%s\" assigned to output \"%s\", but it is already "
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"there. Do you have two assignment directives for the same "
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"workspace in your configuration file?\n",
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workspace->name, output->name);
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continue;
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}
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/* if so, move it over */
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LOG("Moving workspace \"%s\" from output \"%s\" to \"%s\" due to assignment\n",
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workspace->name, workspace_out->name, output->name);
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/* if the workspace is currently visible on that output, we need to
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* switch to a different workspace - otherwise the output would end up
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* with no active workspace */
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bool visible = workspace_is_visible(workspace);
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Con *previous = NULL;
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if (visible && (previous = TAILQ_NEXT(workspace, focused))) {
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LOG("Switching to previously used workspace \"%s\" on output \"%s\"\n",
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previous->name, workspace_out->name);
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workspace_show(previous);
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}
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/* Render the output on which the workspace was to get correct Rects.
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* Then, we need to work with the "content" container, since we cannot
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* be sure that the workspace itself was rendered at all (in case it’s
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* invisible, it won’t be rendered). */
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render_con(workspace_out, false);
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Con *ws_out_content = output_get_content(workspace_out);
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Con *floating_con;
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TAILQ_FOREACH(floating_con, &(workspace->floating_head), floating_windows)
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/* NB: We use output->con here because content is not yet rendered,
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* so it has a rect of {0, 0, 0, 0}. */
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floating_fix_coordinates(floating_con, &(ws_out_content->rect), &(output->con->rect));
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con_detach(workspace);
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con_attach(workspace, content, false);
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/* In case the workspace we just moved was visible but there was no
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* other workspace to switch to, we need to initialize the source
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* output aswell */
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if (visible && previous == NULL) {
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LOG("There is no workspace left on \"%s\", re-initializing\n",
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workspace_out->name);
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init_ws_for_output(get_output_by_name(workspace_out->name),
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output_get_content(workspace_out));
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DLOG("Done re-initializing, continuing with \"%s\"\n", output->name);
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}
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}
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/* if a workspace exists, we are done now */
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if (!TAILQ_EMPTY(&(content->nodes_head))) {
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/* ensure that one of the workspaces is actually visible (in fullscreen
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* mode), if they were invisible before, this might not be the case. */
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Con *visible = NULL;
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GREP_FIRST(visible, content, child->fullscreen_mode == CF_OUTPUT);
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if (!visible) {
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visible = TAILQ_FIRST(&(content->nodes_head));
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focused = content;
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workspace_show(visible);
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}
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return;
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}
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/* otherwise, we create the first assigned ws for this output */
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TAILQ_FOREACH(assignment, &ws_assignments, ws_assignments) {
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if (strcmp(assignment->output, output->name) != 0)
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continue;
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LOG("Initializing first assigned workspace \"%s\" for output \"%s\"\n",
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assignment->name, assignment->output);
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focused = content;
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workspace_show_by_name(assignment->name);
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return;
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}
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/* if there is still no workspace, we create the first free workspace */
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DLOG("Now adding a workspace\n");
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Con *ws = create_workspace_on_output(output, content);
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/* TODO: Set focus in main.c */
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con_focus(ws);
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}
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/*
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* This function needs to be called when changing the mode of an output when
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* it already has some workspaces (or a bar window) assigned.
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*
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* It reconfigures the bar window for the new mode, copies the new rect into
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* each workspace on this output and forces all windows on the affected
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* workspaces to be reconfigured.
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*
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* It is necessary to call render_layout() afterwards.
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*
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*/
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static void output_change_mode(xcb_connection_t *conn, Output *output) {
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DLOG("Output mode changed, updating rect\n");
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assert(output->con != NULL);
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output->con->rect = output->rect;
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Con *content, *workspace, *child;
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/* Point content to the container of the workspaces */
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content = output_get_content(output->con);
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/* Fix the position of all floating windows on this output.
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* The 'rect' of each workspace will be updated in src/render.c. */
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TAILQ_FOREACH(workspace, &(content->nodes_head), nodes) {
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TAILQ_FOREACH(child, &(workspace->floating_head), floating_windows) {
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floating_fix_coordinates(child, &(workspace->rect), &(output->con->rect));
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}
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}
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/* If default_orientation is NO_ORIENTATION, we change the orientation of
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* the workspaces and their childs depending on output resolution. This is
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* only done for workspaces with maximum one child. */
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if (config.default_orientation == NO_ORIENTATION) {
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TAILQ_FOREACH(workspace, &(content->nodes_head), nodes) {
|
||
/* Workspaces with more than one child are left untouched because
|
||
* we do not want to change an existing layout. */
|
||
if (con_num_children(workspace) > 1)
|
||
continue;
|
||
|
||
workspace->layout = (output->rect.height > output->rect.width) ? L_SPLITV : L_SPLITH;
|
||
DLOG("Setting workspace [%d,%s]'s layout to %d.\n", workspace->num, workspace->name, workspace->layout);
|
||
if ((child = TAILQ_FIRST(&(workspace->nodes_head)))) {
|
||
if (child->layout == L_SPLITV || child->layout == L_SPLITH)
|
||
child->layout = workspace->layout;
|
||
DLOG("Setting child [%d,%s]'s layout to %d.\n", child->num, child->name, child->layout);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Gets called by randr_query_outputs() for each output. The function adds new
|
||
* outputs to the list of outputs, checks if the mode of existing outputs has
|
||
* been changed or if an existing output has been disabled. It will then change
|
||
* either the "changed" or the "to_be_deleted" flag of the output, if
|
||
* appropriate.
|
||
*
|
||
*/
|
||
static void handle_output(xcb_connection_t *conn, xcb_randr_output_t id,
|
||
xcb_randr_get_output_info_reply_t *output,
|
||
xcb_timestamp_t cts, resources_reply *res) {
|
||
/* each CRT controller has a position in which we are interested in */
|
||
crtc_info *crtc;
|
||
|
||
Output *new = get_output_by_id(id);
|
||
bool existing = (new != NULL);
|
||
if (!existing)
|
||
new = scalloc(sizeof(Output));
|
||
new->id = id;
|
||
new->primary = (primary && primary->output == id);
|
||
FREE(new->name);
|
||
sasprintf(&new->name, "%.*s",
|
||
xcb_randr_get_output_info_name_length(output),
|
||
xcb_randr_get_output_info_name(output));
|
||
|
||
DLOG("found output with name %s\n", new->name);
|
||
|
||
/* Even if no CRTC is used at the moment, we store the output so that
|
||
* we do not need to change the list ever again (we only update the
|
||
* position/size) */
|
||
if (output->crtc == XCB_NONE) {
|
||
if (!existing) {
|
||
if (new->primary)
|
||
TAILQ_INSERT_HEAD(&outputs, new, outputs);
|
||
else
|
||
TAILQ_INSERT_TAIL(&outputs, new, outputs);
|
||
} else if (new->active)
|
||
new->to_be_disabled = true;
|
||
return;
|
||
}
|
||
|
||
xcb_randr_get_crtc_info_cookie_t icookie;
|
||
icookie = xcb_randr_get_crtc_info(conn, output->crtc, cts);
|
||
if ((crtc = xcb_randr_get_crtc_info_reply(conn, icookie, NULL)) == NULL) {
|
||
DLOG("Skipping output %s: could not get CRTC (%p)\n",
|
||
new->name, crtc);
|
||
free(new);
|
||
return;
|
||
}
|
||
|
||
if (output->connection == XCB_RANDR_CONNECTION_DISCONNECTED) {
|
||
DLOG("Disabling output %s: it is disconnected\n", new->name);
|
||
new->to_be_disabled = true;
|
||
return;
|
||
}
|
||
|
||
bool updated = update_if_necessary(&(new->rect.x), crtc->x) |
|
||
update_if_necessary(&(new->rect.y), crtc->y) |
|
||
update_if_necessary(&(new->rect.width), crtc->width) |
|
||
update_if_necessary(&(new->rect.height), crtc->height);
|
||
free(crtc);
|
||
new->active = (new->rect.width != 0 && new->rect.height != 0);
|
||
if (!new->active) {
|
||
DLOG("width/height 0/0, disabling output\n");
|
||
return;
|
||
} else {
|
||
new->to_be_disabled = false;
|
||
}
|
||
|
||
DLOG("mode: %dx%d+%d+%d\n", new->rect.width, new->rect.height,
|
||
new->rect.x, new->rect.y);
|
||
|
||
/* If we don’t need to change an existing output or if the output
|
||
* does not exist in the first place, the case is simple: we either
|
||
* need to insert the new output or we are done. */
|
||
if (!updated || !existing) {
|
||
if (!existing) {
|
||
if (new->primary)
|
||
TAILQ_INSERT_HEAD(&outputs, new, outputs);
|
||
else
|
||
TAILQ_INSERT_TAIL(&outputs, new, outputs);
|
||
}
|
||
return;
|
||
}
|
||
|
||
new->changed = true;
|
||
}
|
||
|
||
static bool __randr_query_outputs(void) {
|
||
Output *output, *other, *first;
|
||
xcb_randr_get_output_primary_cookie_t pcookie;
|
||
xcb_randr_get_screen_resources_current_cookie_t rcookie;
|
||
resources_reply *res;
|
||
|
||
/* timestamp of the configuration so that we get consistent replies to all
|
||
* requests (if the configuration changes between our different calls) */
|
||
xcb_timestamp_t cts;
|
||
|
||
/* an output is VGA-1, LVDS-1, etc. (usually physical video outputs) */
|
||
xcb_randr_output_t *randr_outputs;
|
||
|
||
if (randr_disabled)
|
||
return true;
|
||
|
||
/* Get screen resources (primary output, crtcs, outputs, modes) */
|
||
rcookie = xcb_randr_get_screen_resources_current(conn, root);
|
||
pcookie = xcb_randr_get_output_primary(conn, root);
|
||
|
||
if ((primary = xcb_randr_get_output_primary_reply(conn, pcookie, NULL)) == NULL)
|
||
ELOG("Could not get RandR primary output\n");
|
||
else
|
||
DLOG("primary output is %08x\n", primary->output);
|
||
if ((res = xcb_randr_get_screen_resources_current_reply(conn, rcookie, NULL)) == NULL) {
|
||
disable_randr(conn);
|
||
return true;
|
||
}
|
||
cts = res->config_timestamp;
|
||
|
||
int len = xcb_randr_get_screen_resources_current_outputs_length(res);
|
||
randr_outputs = xcb_randr_get_screen_resources_current_outputs(res);
|
||
|
||
/* Request information for each output */
|
||
xcb_randr_get_output_info_cookie_t ocookie[len];
|
||
for (int i = 0; i < len; i++)
|
||
ocookie[i] = xcb_randr_get_output_info(conn, randr_outputs[i], cts);
|
||
|
||
/* Loop through all outputs available for this X11 screen */
|
||
for (int i = 0; i < len; i++) {
|
||
xcb_randr_get_output_info_reply_t *output;
|
||
|
||
if ((output = xcb_randr_get_output_info_reply(conn, ocookie[i], NULL)) == NULL)
|
||
continue;
|
||
|
||
handle_output(conn, randr_outputs[i], output, cts, res);
|
||
free(output);
|
||
}
|
||
|
||
/* Check for clones, disable the clones and reduce the mode to the
|
||
* lowest common mode */
|
||
TAILQ_FOREACH(output, &outputs, outputs) {
|
||
if (!output->active || output->to_be_disabled)
|
||
continue;
|
||
DLOG("output %p / %s, position (%d, %d), checking for clones\n",
|
||
output, output->name, output->rect.x, output->rect.y);
|
||
|
||
for (other = output;
|
||
other != TAILQ_END(&outputs);
|
||
other = TAILQ_NEXT(other, outputs)) {
|
||
if (other == output || !other->active || other->to_be_disabled)
|
||
continue;
|
||
|
||
if (other->rect.x != output->rect.x ||
|
||
other->rect.y != output->rect.y)
|
||
continue;
|
||
|
||
DLOG("output %p has the same position, his mode = %d x %d\n",
|
||
other, other->rect.width, other->rect.height);
|
||
uint32_t width = min(other->rect.width, output->rect.width);
|
||
uint32_t height = min(other->rect.height, output->rect.height);
|
||
|
||
if (update_if_necessary(&(output->rect.width), width) |
|
||
update_if_necessary(&(output->rect.height), height))
|
||
output->changed = true;
|
||
|
||
update_if_necessary(&(other->rect.width), width);
|
||
update_if_necessary(&(other->rect.height), height);
|
||
|
||
DLOG("disabling output %p (%s)\n", other, other->name);
|
||
other->to_be_disabled = true;
|
||
|
||
DLOG("new output mode %d x %d, other mode %d x %d\n",
|
||
output->rect.width, output->rect.height,
|
||
other->rect.width, other->rect.height);
|
||
}
|
||
}
|
||
|
||
/* Ensure that all outputs which are active also have a con. This is
|
||
* necessary because in the next step, a clone might get disabled. Example:
|
||
* LVDS1 active, VGA1 gets activated as a clone of LVDS1 (has no con).
|
||
* LVDS1 gets disabled. */
|
||
TAILQ_FOREACH(output, &outputs, outputs) {
|
||
if (output->active && output->con == NULL) {
|
||
DLOG("Need to initialize a Con for output %s\n", output->name);
|
||
output_init_con(output);
|
||
output->changed = false;
|
||
}
|
||
}
|
||
|
||
/* Handle outputs which have a new mode or are disabled now (either
|
||
* because the user disabled them or because they are clones) */
|
||
TAILQ_FOREACH(output, &outputs, outputs) {
|
||
if (output->to_be_disabled) {
|
||
output->active = false;
|
||
DLOG("Output %s disabled, re-assigning workspaces/docks\n", output->name);
|
||
|
||
first = get_first_output();
|
||
if (!first) {
|
||
FREE(res);
|
||
FREE(primary);
|
||
return false;
|
||
}
|
||
|
||
/* TODO: refactor the following code into a nice function. maybe
|
||
* use an on_destroy callback which is implement differently for
|
||
* different container types (CT_CONTENT vs. CT_DOCKAREA)? */
|
||
Con *first_content = output_get_content(first->con);
|
||
|
||
if (output->con != NULL) {
|
||
/* We need to move the workspaces from the disappearing output to the first output */
|
||
/* 1: Get the con to focus next, if the disappearing ws is focused */
|
||
Con *next = NULL;
|
||
if (TAILQ_FIRST(&(croot->focus_head)) == output->con) {
|
||
DLOG("This output (%p) was focused! Getting next\n", output->con);
|
||
next = focused;
|
||
DLOG("next = %p\n", next);
|
||
}
|
||
|
||
/* 2: iterate through workspaces and re-assign them, fixing the coordinates
|
||
* of floating containers as we go */
|
||
Con *current;
|
||
Con *old_content = output_get_content(output->con);
|
||
while (!TAILQ_EMPTY(&(old_content->nodes_head))) {
|
||
current = TAILQ_FIRST(&(old_content->nodes_head));
|
||
if (current != next && TAILQ_EMPTY(&(current->focus_head))) {
|
||
/* the workspace is empty and not focused, get rid of it */
|
||
DLOG("Getting rid of current = %p / %s (empty, unfocused)\n", current, current->name);
|
||
tree_close(current, DONT_KILL_WINDOW, false, false);
|
||
continue;
|
||
}
|
||
DLOG("Detaching current = %p / %s\n", current, current->name);
|
||
con_detach(current);
|
||
DLOG("Re-attaching current = %p / %s\n", current, current->name);
|
||
con_attach(current, first_content, false);
|
||
DLOG("Fixing the coordinates of floating containers\n");
|
||
Con *floating_con;
|
||
TAILQ_FOREACH(floating_con, &(current->floating_head), floating_windows)
|
||
floating_fix_coordinates(floating_con, &(output->con->rect), &(first->con->rect));
|
||
DLOG("Done, next\n");
|
||
}
|
||
DLOG("re-attached all workspaces\n");
|
||
|
||
if (next) {
|
||
DLOG("now focusing next = %p\n", next);
|
||
con_focus(next);
|
||
workspace_show(con_get_workspace(next));
|
||
}
|
||
|
||
/* 3: move the dock clients to the first output */
|
||
Con *child;
|
||
TAILQ_FOREACH(child, &(output->con->nodes_head), nodes) {
|
||
if (child->type != CT_DOCKAREA)
|
||
continue;
|
||
DLOG("Handling dock con %p\n", child);
|
||
Con *dock;
|
||
while (!TAILQ_EMPTY(&(child->nodes_head))) {
|
||
dock = TAILQ_FIRST(&(child->nodes_head));
|
||
Con *nc;
|
||
Match *match;
|
||
nc = con_for_window(first->con, dock->window, &match);
|
||
DLOG("Moving dock client %p to nc %p\n", dock, nc);
|
||
con_detach(dock);
|
||
DLOG("Re-attaching\n");
|
||
con_attach(dock, nc, false);
|
||
DLOG("Done\n");
|
||
}
|
||
}
|
||
|
||
DLOG("destroying disappearing con %p\n", output->con);
|
||
tree_close(output->con, DONT_KILL_WINDOW, true, false);
|
||
DLOG("Done. Should be fine now\n");
|
||
output->con = NULL;
|
||
}
|
||
|
||
output->to_be_disabled = false;
|
||
output->changed = false;
|
||
}
|
||
|
||
if (output->changed) {
|
||
output_change_mode(conn, output);
|
||
output->changed = false;
|
||
}
|
||
}
|
||
|
||
if (TAILQ_EMPTY(&outputs)) {
|
||
ELOG("No outputs found via RandR, disabling\n");
|
||
disable_randr(conn);
|
||
}
|
||
|
||
/* Verifies that there is at least one active output as a side-effect. */
|
||
get_first_output();
|
||
|
||
/* Just go through each active output and assign one workspace */
|
||
TAILQ_FOREACH(output, &outputs, outputs) {
|
||
if (!output->active)
|
||
continue;
|
||
Con *content = output_get_content(output->con);
|
||
if (!TAILQ_EMPTY(&(content->nodes_head)))
|
||
continue;
|
||
DLOG("Should add ws for output %s\n", output->name);
|
||
init_ws_for_output(output, content);
|
||
}
|
||
|
||
/* Focus the primary screen, if possible */
|
||
TAILQ_FOREACH(output, &outputs, outputs) {
|
||
if (!output->primary || !output->con)
|
||
continue;
|
||
|
||
DLOG("Focusing primary output %s\n", output->name);
|
||
con_focus(con_descend_focused(output->con));
|
||
}
|
||
|
||
/* render_layout flushes */
|
||
tree_render();
|
||
|
||
FREE(res);
|
||
FREE(primary);
|
||
|
||
return true;
|
||
}
|
||
|
||
/*
|
||
* (Re-)queries the outputs via RandR and stores them in the list of outputs.
|
||
*
|
||
*/
|
||
void randr_query_outputs(void) {
|
||
static bool first_query = true;
|
||
|
||
if (first_query) {
|
||
/* find monitors at least once via RandR */
|
||
if (!__randr_query_outputs())
|
||
die("No usable outputs available.\n");
|
||
first_query = false;
|
||
} else {
|
||
/* requery */
|
||
if (!__randr_query_outputs()) {
|
||
DLOG("sleep %f ms due to zero displays\n", config.zero_disp_exit_timer_ms);
|
||
usleep(config.zero_disp_exit_timer_ms * 1000);
|
||
|
||
if (!__randr_query_outputs())
|
||
die("No usable outputs available.\n");
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* We have just established a connection to the X server and need the initial
|
||
* XRandR information to setup workspaces for each screen.
|
||
*
|
||
*/
|
||
void randr_init(int *event_base) {
|
||
const xcb_query_extension_reply_t *extreply;
|
||
|
||
extreply = xcb_get_extension_data(conn, &xcb_randr_id);
|
||
if (!extreply->present) {
|
||
disable_randr(conn);
|
||
return;
|
||
} else
|
||
randr_query_outputs();
|
||
|
||
if (event_base != NULL)
|
||
*event_base = extreply->first_event;
|
||
|
||
xcb_randr_select_input(conn, root,
|
||
XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE |
|
||
XCB_RANDR_NOTIFY_MASK_OUTPUT_CHANGE |
|
||
XCB_RANDR_NOTIFY_MASK_CRTC_CHANGE |
|
||
XCB_RANDR_NOTIFY_MASK_OUTPUT_PROPERTY);
|
||
|
||
xcb_flush(conn);
|
||
}
|