#include <math.h>
#include <xcb/xcb.h>
#include <xcb/xcb_keysyms.h>
+#include <ev.h>
#ifndef NOLIBCAIRO
#include <cairo.h>
#include "xcb.h"
#include "unlock_indicator.h"
+#include "xinerama.h"
#define BUTTON_RADIUS 90
#define BUTTON_SPACE (BUTTON_RADIUS + 5)
#define BUTTON_CENTER (BUTTON_RADIUS + 5)
-#define BUTTON_DIAMETER (5 * BUTTON_SPACE)
+#define BUTTON_DIAMETER (2 * BUTTON_SPACE)
/*******************************************************************************
* Variables defined in i3lock.c.
******************************************************************************/
+/* The current position in the input buffer. Useful to determine if any
+ * characters of the password have already been entered or not. */
+int input_position;
+
+/* The ev main loop. */
+struct ev_loop *main_loop;
+
/* The lock window. */
extern xcb_window_t win;
/* Whether the unlock indicator is enabled (defaults to true). */
extern bool unlock_indicator;
+#ifndef NOLIBCAIRO
/* A Cairo surface containing the specified image (-i), if any. */
extern cairo_surface_t *img;
+#endif
+
/* Whether the image should be tiled. */
extern bool tile;
/* The background color to use (in hex). */
* Local variables.
******************************************************************************/
+static struct ev_timer *clear_indicator_timeout;
+
/* Cache the screen’s visual, necessary for creating a Cairo context. */
static xcb_visualtype_t *vistype;
if (!vistype)
vistype = get_root_visual_type(screen);
bg_pixmap = create_bg_pixmap(conn, screen, resolution, color);
- /* Initialize cairo */
- cairo_surface_t *output;
- output = cairo_xcb_surface_create(conn, bg_pixmap, vistype,
- resolution[0], resolution[1]);
+ /* Initialize cairo: Create one in-memory surface to render the unlock
+ * indicator on, create one XCB surface to actually draw (one or more,
+ * depending on the amount of screens) unlock indicators on. */
+ cairo_surface_t *output = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, BUTTON_DIAMETER, BUTTON_DIAMETER);
cairo_t *ctx = cairo_create(output);
+
+ cairo_surface_t *xcb_output = cairo_xcb_surface_create(conn, bg_pixmap, vistype, resolution[0], resolution[1]);
+ cairo_t *xcb_ctx = cairo_create(xcb_output);
+
if (img) {
if (!tile) {
- cairo_set_source_surface(ctx, img, 0, 0);
- cairo_paint(ctx);
+ cairo_set_source_surface(xcb_ctx, img, 0, 0);
+ cairo_paint(xcb_ctx);
} else {
/* create a pattern and fill a rectangle as big as the screen */
cairo_pattern_t *pattern;
pattern = cairo_pattern_create_for_surface(img);
- cairo_set_source(ctx, pattern);
+ cairo_set_source(xcb_ctx, pattern);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
- cairo_rectangle(ctx, 0, 0, resolution[0], resolution[1]);
- cairo_fill(ctx);
+ cairo_rectangle(xcb_ctx, 0, 0, resolution[0], resolution[1]);
+ cairo_fill(xcb_ctx);
cairo_pattern_destroy(pattern);
}
+ } else {
+ char strgroups[3][3] = {{color[0], color[1], '\0'},
+ {color[2], color[3], '\0'},
+ {color[4], color[5], '\0'}};
+ uint32_t rgb16[3] = {(strtol(strgroups[0], NULL, 16)),
+ (strtol(strgroups[1], NULL, 16)),
+ (strtol(strgroups[2], NULL, 16))};
+ cairo_set_source_rgb(xcb_ctx, rgb16[0], rgb16[1], rgb16[2]);
+ cairo_rectangle(xcb_ctx, 0, 0, resolution[0], resolution[1]);
+ cairo_fill(xcb_ctx);
}
if (unlock_state >= STATE_KEY_PRESSED && unlock_indicator) {
- cairo_pattern_t *outer_pat = NULL;
-
- outer_pat = cairo_pattern_create_linear(0, 0, 0, BUTTON_DIAMETER);
- switch (pam_state) {
- case STATE_PAM_VERIFY:
- cairo_pattern_add_color_stop_rgb(outer_pat, 0, 139.0/255, 0, 250.0/255);
- cairo_pattern_add_color_stop_rgb(outer_pat, 1, 51.0/255, 0, 250.0/255);
- break;
- case STATE_PAM_WRONG:
- cairo_pattern_add_color_stop_rgb(outer_pat, 0, 255.0/250, 139.0/255, 0);
- cairo_pattern_add_color_stop_rgb(outer_pat, 1, 125.0/255, 51.0/255, 0);
- break;
- case STATE_PAM_IDLE:
- cairo_pattern_add_color_stop_rgb(outer_pat, 0, 139.0/255, 125.0/255, 0);
- cairo_pattern_add_color_stop_rgb(outer_pat, 1, 51.0/255, 125.0/255, 0);
- break;
- }
-
/* Draw a (centered) circle with transparent background. */
cairo_set_line_width(ctx, 10.0);
cairo_arc(ctx,
- (resolution[0] / 2) /* x */,
- (resolution[1] / 2) /* y */,
+ BUTTON_CENTER /* x */,
+ BUTTON_CENTER /* y */,
BUTTON_RADIUS /* radius */,
0 /* start */,
2 * M_PI /* end */);
break;
}
cairo_fill_preserve(ctx);
- cairo_set_source(ctx, outer_pat);
+
+ switch (pam_state) {
+ case STATE_PAM_VERIFY:
+ cairo_set_source_rgb(ctx, 51.0/255, 0, 250.0/255);
+ break;
+ case STATE_PAM_WRONG:
+ cairo_set_source_rgb(ctx, 125.0/255, 51.0/255, 0);
+ break;
+ case STATE_PAM_IDLE:
+ cairo_set_source_rgb(ctx, 51.0/255, 125.0/255, 0);
+ break;
+ }
cairo_stroke(ctx);
/* Draw an inner seperator line. */
cairo_set_source_rgb(ctx, 0, 0, 0);
cairo_set_line_width(ctx, 2.0);
cairo_arc(ctx,
- (resolution[0] / 2) /* x */,
- (resolution[1] / 2) /* y */,
+ BUTTON_CENTER /* x */,
+ BUTTON_CENTER /* y */,
BUTTON_RADIUS - 5 /* radius */,
0,
2 * M_PI);
cairo_set_font_size(ctx, 28.0);
cairo_text_extents(ctx, text, &extents);
- x = (resolution[0] / 2.0) - ((extents.width / 2) + extents.x_bearing);
- y = (resolution[1] / 2.0) - ((extents.height / 2) + extents.y_bearing);
+ x = BUTTON_CENTER - ((extents.width / 2) + extents.x_bearing);
+ y = BUTTON_CENTER - ((extents.height / 2) + extents.y_bearing);
cairo_move_to(ctx, x, y);
cairo_show_text(ctx, text);
unlock_state == STATE_BACKSPACE_ACTIVE) {
cairo_new_sub_path(ctx);
double highlight_start = (rand() % (int)(2 * M_PI * 100)) / 100.0;
- cairo_arc(ctx, resolution[0] / 2 /* x */, resolution[1] / 2 /* y */,
- BUTTON_RADIUS /* radius */, highlight_start,
+ cairo_arc(ctx,
+ BUTTON_CENTER /* x */,
+ BUTTON_CENTER /* y */,
+ BUTTON_RADIUS /* radius */,
+ highlight_start,
highlight_start + (M_PI / 3.0));
if (unlock_state == STATE_KEY_ACTIVE) {
/* For normal keys, we use a lighter green. */
- outer_pat = cairo_pattern_create_linear(0, 0, 0, BUTTON_DIAMETER);
- cairo_pattern_add_color_stop_rgb(outer_pat, 0, 139.0/255, 219.0/255, 0);
- cairo_pattern_add_color_stop_rgb(outer_pat, 1, 51.0/255, 219.0/255, 0);
+ cairo_set_source_rgb(ctx, 51.0/255, 219.0/255, 0);
} else {
/* For backspace, we use red. */
- outer_pat = cairo_pattern_create_linear(0, 0, 0, BUTTON_DIAMETER);
- cairo_pattern_add_color_stop_rgb(outer_pat, 0, 219.0/255, 139.0/255, 0);
- cairo_pattern_add_color_stop_rgb(outer_pat, 1, 219.0/255, 51.0/255, 0);
+ cairo_set_source_rgb(ctx, 219.0/255, 51.0/255, 0);
}
- cairo_set_source(ctx, outer_pat);
cairo_stroke(ctx);
/* Draw two little separators for the highlighted part of the
* unlock indicator. */
cairo_set_source_rgb(ctx, 0, 0, 0);
cairo_arc(ctx,
- (resolution[0] / 2) /* x */,
- (resolution[1] / 2) /* y */,
+ BUTTON_CENTER /* x */,
+ BUTTON_CENTER /* y */,
BUTTON_RADIUS /* radius */,
highlight_start /* start */,
highlight_start + (M_PI / 128.0) /* end */);
cairo_stroke(ctx);
cairo_arc(ctx,
- (resolution[0] / 2) /* x */,
- (resolution[1] / 2) /* y */,
+ BUTTON_CENTER /* x */,
+ BUTTON_CENTER /* y */,
BUTTON_RADIUS /* radius */,
highlight_start + (M_PI / 3.0) /* start */,
(highlight_start + (M_PI / 3.0)) + (M_PI / 128.0) /* end */);
}
}
+ if (xr_screens > 0) {
+ /* Composite the unlock indicator in the middle of each screen. */
+ for (int screen = 0; screen < xr_screens; screen++) {
+ int x = (xr_resolutions[screen].x + ((xr_resolutions[screen].width / 2) - (BUTTON_DIAMETER / 2)));
+ int y = (xr_resolutions[screen].y + ((xr_resolutions[screen].height / 2) - (BUTTON_DIAMETER / 2)));
+ cairo_set_source_surface(xcb_ctx, output, x, y);
+ cairo_rectangle(xcb_ctx, x, y, BUTTON_DIAMETER, BUTTON_DIAMETER);
+ cairo_fill(xcb_ctx);
+ }
+ } else {
+ /* We have no information about the screen sizes/positions, so we just
+ * place the unlock indicator in the middle of the X root window and
+ * hope for the best. */
+ int x = (last_resolution[0] / 2);
+ int y = (last_resolution[1] / 2);
+ cairo_set_source_surface(xcb_ctx, output, x, y);
+ cairo_rectangle(xcb_ctx, x, y, BUTTON_DIAMETER, BUTTON_DIAMETER);
+ cairo_fill(xcb_ctx);
+ }
+
+ cairo_surface_destroy(xcb_output);
cairo_surface_destroy(output);
cairo_destroy(ctx);
+ cairo_destroy(xcb_ctx);
#endif
return bg_pixmap;
}
xcb_free_pixmap(conn, bg_pixmap);
xcb_flush(conn);
}
+
+/*
+ * Hides the unlock indicator completely when there is no content in the
+ * password buffer.
+ *
+ */
+static void clear_indicator(EV_P_ ev_timer *w, int revents) {
+ if (input_position == 0) {
+ unlock_state = STATE_STARTED;
+ } else unlock_state = STATE_KEY_PRESSED;
+ redraw_screen();
+
+ ev_timer_stop(main_loop, clear_indicator_timeout);
+ free(clear_indicator_timeout);
+ clear_indicator_timeout = NULL;
+}
+
+/*
+ * (Re-)starts the clear_indicator timeout. Called after pressing backspace or
+ * after an unsuccessful authentication attempt.
+ *
+ */
+void start_clear_indicator_timeout() {
+ if (clear_indicator_timeout) {
+ ev_timer_stop(main_loop, clear_indicator_timeout);
+ ev_timer_set(clear_indicator_timeout, 1.0, 0.);
+ ev_timer_start(main_loop, clear_indicator_timeout);
+ } else {
+ /* When there is no memory, we just don’t have a timeout. We cannot
+ * exit() here, since that would effectively unlock the screen. */
+ if (!(clear_indicator_timeout = calloc(sizeof(struct ev_timer), 1)))
+ return;
+ ev_timer_init(clear_indicator_timeout, clear_indicator, 1.0, 0.);
+ ev_timer_start(main_loop, clear_indicator_timeout);
+ }
+}
+
+/*
+ * Stops the clear_indicator timeout.
+ *
+ */
+void stop_clear_indicator_timeout() {
+ if (clear_indicator_timeout) {
+ ev_timer_stop(main_loop, clear_indicator_timeout);
+ free(clear_indicator_timeout);
+ clear_indicator_timeout = NULL;
+ }
+}
projects / i3 / i3lock / blobdiff