/* * vim:ts=4:sw=4:expandtab * * © 2010 Michael Stapelberg * * See LICENSE for licensing information * */ #include #include #include #include #include #include #include #include #include #include "i3lock.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 (2 * BUTTON_SPACE) /******************************************************************************* * Variables defined in i3lock.c. ******************************************************************************/ extern bool debug_mode; /* 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 lock window. */ extern xcb_window_t win; /* The current resolution of the X11 root window. */ extern uint32_t last_resolution[2]; /* Whether the unlock indicator is enabled (defaults to true). */ extern bool unlock_indicator; /* List of pressed modifiers, or NULL if none are pressed. */ extern char *modifier_string; /* A Cairo surface containing the specified image (-i), if any. */ extern cairo_surface_t *img; /* Whether the image should be tiled. */ extern bool tile; /* The background color to use (in hex). */ extern char color[7]; /* indicator color options */ extern char insidevercolor[9]; extern char insidewrongcolor[9]; extern char insidecolor[9]; extern char ringvercolor[9]; extern char ringwrongcolor[9]; extern char ringcolor[9]; extern char linecolor[9]; extern char textcolor[9]; extern char keyhlcolor[9]; extern char bshlcolor[9]; extern char separatorcolor[9]; extern int internal_line_source; /* Whether the failed attempts should be displayed. */ extern bool show_failed_attempts; /* Number of failed unlock attempts. */ extern int failed_attempts; /******************************************************************************* * Variables defined in xcb.c. ******************************************************************************/ /* The root screen, to determine the DPI. */ extern xcb_screen_t *screen; /******************************************************************************* * Local variables. ******************************************************************************/ /* Cache the screen’s visual, necessary for creating a Cairo context. */ static xcb_visualtype_t *vistype; /* Maintain the current unlock/PAM state to draw the appropriate unlock * indicator. */ unlock_state_t unlock_state; pam_state_t pam_state; /* * Returns the scaling factor of the current screen. E.g., on a 227 DPI MacBook * Pro 13" Retina screen, the scaling factor is 227/96 = 2.36. * */ static double scaling_factor(void) { const int dpi = (double)screen->height_in_pixels * 25.4 / (double)screen->height_in_millimeters; return (dpi / 96.0); } /* * Draws global image with fill color onto a pixmap with the given * resolution and returns it. * */ xcb_pixmap_t draw_image(uint32_t *resolution) { xcb_pixmap_t bg_pixmap = XCB_NONE; int button_diameter_physical = ceil(scaling_factor() * BUTTON_DIAMETER); DEBUG("scaling_factor is %.f, physical diameter is %d px\n", scaling_factor(), button_diameter_physical); if (!vistype) vistype = get_root_visual_type(screen); bg_pixmap = create_bg_pixmap(conn, screen, resolution, color); /* 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_physical, button_diameter_physical); 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(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(xcb_ctx, pattern); cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT); 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] / 255.0, rgb16[1] / 255.0, rgb16[2] / 255.0); cairo_rectangle(xcb_ctx, 0, 0, resolution[0], resolution[1]); cairo_fill(xcb_ctx); } /* build indicator color arrays */ char strgroupsiv[4][3] = {{insidevercolor[0], insidevercolor[1], '\0'}, {insidevercolor[2], insidevercolor[3], '\0'}, {insidevercolor[4], insidevercolor[5], '\0'}, {insidevercolor[6], insidevercolor[7], '\0'}}; uint32_t insidever16[4] = {(strtol(strgroupsiv[0], NULL, 16)), (strtol(strgroupsiv[1], NULL, 16)), (strtol(strgroupsiv[2], NULL, 16)), (strtol(strgroupsiv[3], NULL, 16))}; char strgroupsiw[4][3] = {{insidewrongcolor[0], insidewrongcolor[1], '\0'}, {insidewrongcolor[2], insidewrongcolor[3], '\0'}, {insidewrongcolor[4], insidewrongcolor[5], '\0'}, {insidewrongcolor[6], insidewrongcolor[7], '\0'}}; uint32_t insidewrong16[4] = {(strtol(strgroupsiw[0], NULL, 16)), (strtol(strgroupsiw[1], NULL, 16)), (strtol(strgroupsiw[2], NULL, 16)), (strtol(strgroupsiw[3], NULL, 16))}; char strgroupsi[4][3] = {{insidecolor[0], insidecolor[1], '\0'}, {insidecolor[2], insidecolor[3], '\0'}, {insidecolor[4], insidecolor[5], '\0'}, {insidecolor[6], insidecolor[7], '\0'}}; uint32_t inside16[4] = {(strtol(strgroupsi[0], NULL, 16)), (strtol(strgroupsi[1], NULL, 16)), (strtol(strgroupsi[2], NULL, 16)), (strtol(strgroupsi[3], NULL, 16))}; char strgroupsrv[4][3] = {{ringvercolor[0], ringvercolor[1], '\0'}, {ringvercolor[2], ringvercolor[3], '\0'}, {ringvercolor[4], ringvercolor[5], '\0'}, {ringvercolor[6], ringvercolor[7], '\0'}}; uint32_t ringver16[4] = {(strtol(strgroupsrv[0], NULL, 16)), (strtol(strgroupsrv[1], NULL, 16)), (strtol(strgroupsrv[2], NULL, 16)), (strtol(strgroupsrv[3], NULL, 16))}; char strgroupsrw[4][3] = {{ringwrongcolor[0], ringwrongcolor[1], '\0'}, {ringwrongcolor[2], ringwrongcolor[3], '\0'}, {ringwrongcolor[4], ringwrongcolor[5], '\0'}, {ringwrongcolor[6], ringwrongcolor[7], '\0'}}; uint32_t ringwrong16[4] = {(strtol(strgroupsrw[0], NULL, 16)), (strtol(strgroupsrw[1], NULL, 16)), (strtol(strgroupsrw[2], NULL, 16)), (strtol(strgroupsrw[3], NULL, 16))}; char strgroupsr[4][3] = {{ringcolor[0], ringcolor[1], '\0'}, {ringcolor[2], ringcolor[3], '\0'}, {ringcolor[4], ringcolor[5], '\0'}, {ringcolor[6], ringcolor[7], '\0'}}; uint32_t ring16[4] = {(strtol(strgroupsr[0], NULL, 16)), (strtol(strgroupsr[1], NULL, 16)), (strtol(strgroupsr[2], NULL, 16)), (strtol(strgroupsr[3], NULL, 16))}; char strgroupsl[4][3] = {{linecolor[0], linecolor[1], '\0'}, {linecolor[2], linecolor[3], '\0'}, {linecolor[4], linecolor[5], '\0'}, {linecolor[6], linecolor[7], '\0'}}; uint32_t line16[4] = {(strtol(strgroupsl[0], NULL, 16)), (strtol(strgroupsl[1], NULL, 16)), (strtol(strgroupsl[2], NULL, 16)), (strtol(strgroupsl[3], NULL, 16))}; char strgroupst[4][3] = {{textcolor[0], textcolor[1], '\0'}, {textcolor[2], textcolor[3], '\0'}, {textcolor[4], textcolor[5], '\0'}, {textcolor[6], textcolor[7], '\0'}}; uint32_t text16[4] = {(strtol(strgroupst[0], NULL, 16)), (strtol(strgroupst[1], NULL, 16)), (strtol(strgroupst[2], NULL, 16)), (strtol(strgroupst[3], NULL, 16))}; char strgroupsk[4][3] = {{keyhlcolor[0], keyhlcolor[1], '\0'}, {keyhlcolor[2], keyhlcolor[3], '\0'}, {keyhlcolor[4], keyhlcolor[5], '\0'}, {keyhlcolor[6], keyhlcolor[7], '\0'}}; uint32_t keyhl16[4] = {(strtol(strgroupsk[0], NULL, 16)), (strtol(strgroupsk[1], NULL, 16)), (strtol(strgroupsk[2], NULL, 16)), (strtol(strgroupsk[3], NULL, 16))}; char strgroupsb[4][3] = {{bshlcolor[0], bshlcolor[1], '\0'}, {bshlcolor[2], bshlcolor[3], '\0'}, {bshlcolor[4], bshlcolor[5], '\0'}, {bshlcolor[6], bshlcolor[7], '\0'}}; uint32_t bshl16[4] = {(strtol(strgroupsb[0], NULL, 16)), (strtol(strgroupsb[1], NULL, 16)), (strtol(strgroupsb[2], NULL, 16)), (strtol(strgroupsb[3], NULL, 16))}; char strgroupss[4][3] = {{separatorcolor[0], separatorcolor[1], '\0'}, {separatorcolor[2], separatorcolor[3], '\0'}, {separatorcolor[4], separatorcolor[5], '\0'}, {separatorcolor[6], separatorcolor[7], '\0'}}; uint32_t sep16[4] = {(strtol(strgroupss[0], NULL, 16)), (strtol(strgroupss[1], NULL, 16)), (strtol(strgroupss[2], NULL, 16)), (strtol(strgroupss[3], NULL, 16))}; if (unlock_indicator && (unlock_state >= STATE_KEY_PRESSED || pam_state > STATE_PAM_IDLE)) { cairo_scale(ctx, scaling_factor(), scaling_factor()); /* Draw a (centered) circle with transparent background. */ cairo_set_line_width(ctx, 10.0); cairo_arc(ctx, BUTTON_CENTER /* x */, BUTTON_CENTER /* y */, BUTTON_RADIUS /* radius */, 0 /* start */, 2 * M_PI /* end */); /* Use the appropriate color for the different PAM states * (currently verifying, wrong password, or default) */ switch (pam_state) { case STATE_PAM_VERIFY: cairo_set_source_rgba(ctx, (double)insidever16[0]/255, (double)insidever16[1]/255, (double)insidever16[2]/255, (double)insidever16[3]/255); break; case STATE_PAM_WRONG: cairo_set_source_rgba(ctx, (double)insidewrong16[0]/255, (double)insidewrong16[1]/255, (double)insidewrong16[2]/255, (double)insidewrong16[3]/255); break; default: cairo_set_source_rgba(ctx, (double)inside16[0]/255, (double)inside16[1]/255, (double)inside16[2]/255, (double)inside16[3]/255); break; } cairo_fill_preserve(ctx); switch (pam_state) { case STATE_PAM_VERIFY: cairo_set_source_rgba(ctx, (double)ringver16[0]/255, (double)ringver16[1]/255, (double)ringver16[2]/255, (double)ringver16[3]/255); if (internal_line_source == 1) { line16[0] = ringver16[0]; line16[1] = ringver16[1]; line16[2] = ringver16[2]; line16[3] = ringver16[3]; } break; case STATE_PAM_WRONG: cairo_set_source_rgba(ctx, (double)ringwrong16[0]/255, (double)ringwrong16[1]/255, (double)ringwrong16[2]/255, (double)ringwrong16[3]/255); if (internal_line_source == 1) { line16[0] = ringwrong16[0]; line16[1] = ringwrong16[1]; line16[2] = ringwrong16[2]; line16[3] = ringwrong16[3]; } break; case STATE_PAM_IDLE: cairo_set_source_rgba(ctx, (double)ring16[0]/255, (double)ring16[1]/255, (double)ring16[2]/255, (double)ring16[3]/255); if (internal_line_source == 1) { line16[0] = ring16[0]; line16[1] = ring16[1]; line16[2] = ring16[2]; line16[3] = ring16[3]; } break; } cairo_stroke(ctx); /* Draw an inner separator line. */ if (internal_line_source != 2) { //pretty sure this only needs drawn if it's being drawn over the inside? cairo_set_source_rgba(ctx, (double)line16[0]/255, (double)line16[1]/255, (double)line16[2]/255, (double)line16[3]/255); cairo_set_line_width(ctx, 2.0); cairo_arc(ctx, BUTTON_CENTER /* x */, BUTTON_CENTER /* y */, BUTTON_RADIUS - 5 /* radius */, 0, 2 * M_PI); cairo_stroke(ctx); } cairo_set_line_width(ctx, 10.0); /* Display a (centered) text of the current PAM state. */ char *text = NULL; /* We don't want to show more than a 3-digit number. */ char buf[4]; cairo_set_source_rgba(ctx, (double)text16[0]/255, (double)text16[1]/255, (double)text16[2]/255, (double)text16[3]/255); //this was moved up to here cairo_set_font_size(ctx, 28.0); switch (pam_state) { case STATE_PAM_VERIFY: text = "verifying…"; break; case STATE_PAM_WRONG: text = "wrong!"; break; default: if (show_failed_attempts && failed_attempts > 0) { if (failed_attempts > 999) { text = "> 999"; } else { snprintf(buf, sizeof(buf), "%d", failed_attempts); text = buf; } cairo_set_source_rgba(ctx, (double)text16[0]/255, (double)text16[1]/255, (double)text16[2]/255, (double)text16[3]/255); cairo_set_font_size(ctx, 32.0); } break; } if (text) { cairo_text_extents_t extents; double x, y; cairo_text_extents(ctx, text, &extents); 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); cairo_close_path(ctx); } if (pam_state == STATE_PAM_WRONG && (modifier_string != NULL)) { cairo_text_extents_t extents; double x, y; cairo_set_font_size(ctx, 14.0); cairo_text_extents(ctx, modifier_string, &extents); x = BUTTON_CENTER - ((extents.width / 2) + extents.x_bearing); y = BUTTON_CENTER - ((extents.height / 2) + extents.y_bearing) + 28.0; cairo_move_to(ctx, x, y); cairo_show_text(ctx, modifier_string); cairo_close_path(ctx); } /* After the user pressed any valid key or the backspace key, we * highlight a random part of the unlock indicator to confirm this * keypress. */ if (unlock_state == STATE_KEY_ACTIVE || unlock_state == STATE_BACKSPACE_ACTIVE) { cairo_new_sub_path(ctx); double highlight_start = (rand() % (int)(2 * M_PI * 100)) / 100.0; 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. */ //lol no cairo_set_source_rgba(ctx, (double)keyhl16[0]/255, (double)keyhl16[1]/255, (double)keyhl16[2]/255, (double)keyhl16[3]/255); } else { /* For backspace, we use red. */ //lol no cairo_set_source_rgba(ctx, (double)bshl16[0]/255, (double)bshl16[1]/255, (double)bshl16[2]/255, (double)bshl16[3]/255); } cairo_stroke(ctx); /* Draw two little separators for the highlighted part of the * unlock indicator. */ cairo_set_source_rgba(ctx, (double)sep16[0]/255, (double)sep16[1]/255, (double)sep16[2]/255, (double)sep16[3]/255); cairo_arc(ctx, 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, 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 */); cairo_stroke(ctx); } } 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_physical / 2))); int y = (xr_resolutions[screen].y + ((xr_resolutions[screen].height / 2) - (button_diameter_physical / 2))); cairo_set_source_surface(xcb_ctx, output, x, y); cairo_rectangle(xcb_ctx, x, y, button_diameter_physical, button_diameter_physical); 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) - (button_diameter_physical / 2); int y = (last_resolution[1] / 2) - (button_diameter_physical / 2); cairo_set_source_surface(xcb_ctx, output, x, y); cairo_rectangle(xcb_ctx, x, y, button_diameter_physical, button_diameter_physical); cairo_fill(xcb_ctx); } cairo_surface_destroy(xcb_output); cairo_surface_destroy(output); cairo_destroy(ctx); cairo_destroy(xcb_ctx); return bg_pixmap; } /* * Calls draw_image on a new pixmap and swaps that with the current pixmap * */ void redraw_screen(void) { DEBUG("redraw_screen(unlock_state = %d, pam_state = %d)\n", unlock_state, pam_state); xcb_pixmap_t bg_pixmap = draw_image(last_resolution); xcb_change_window_attributes(conn, win, XCB_CW_BACK_PIXMAP, (uint32_t[1]){bg_pixmap}); /* XXX: Possible optimization: Only update the area in the middle of the * screen instead of the whole screen. */ xcb_clear_area(conn, 0, win, 0, 0, last_resolution[0], last_resolution[1]); xcb_free_pixmap(conn, bg_pixmap); xcb_flush(conn); } /* * Hides the unlock indicator completely when there is no content in the * password buffer. * */ void clear_indicator(void) { if (input_position == 0) { unlock_state = STATE_STARTED; } else unlock_state = STATE_KEY_PRESSED; redraw_screen(); }