40e9098a74
Keeps track of unsuccessful authentication attempts via an int counter in the state struct. Displays on the unlock indicator, but will be replaced by the Caps Lock text if enabled.
202 lines
6.8 KiB
C
202 lines
6.8 KiB
C
#include <math.h>
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#include <stdlib.h>
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#include <wayland-client.h>
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#include "cairo.h"
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#include "background-image.h"
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#include "swaylock.h"
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#define M_PI 3.14159265358979323846
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const float TYPE_INDICATOR_RANGE = M_PI / 3.0f;
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const float TYPE_INDICATOR_BORDER_THICKNESS = M_PI / 128.0f;
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static void set_color_for_state(cairo_t *cairo, struct swaylock_state *state,
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struct swaylock_colorset *colorset) {
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if (state->auth_state == AUTH_STATE_VALIDATING) {
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cairo_set_source_u32(cairo, colorset->verifying);
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} else if (state->auth_state == AUTH_STATE_INVALID) {
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cairo_set_source_u32(cairo, colorset->wrong);
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} else if (state->auth_state == AUTH_STATE_CLEAR) {
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cairo_set_source_u32(cairo, colorset->cleared);
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} else {
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if (state->xkb.caps_lock && state->args.show_caps_lock_indicator) {
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cairo_set_source_u32(cairo, colorset->caps_lock);
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} else if (state->xkb.caps_lock && !state->args.show_caps_lock_indicator &&
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state->args.show_caps_lock_text) {
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uint32_t inputtextcolor = state->args.colors.text.input;
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state->args.colors.text.input = state->args.colors.text.caps_lock;
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cairo_set_source_u32(cairo, colorset->input);
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state->args.colors.text.input = inputtextcolor;
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} else {
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cairo_set_source_u32(cairo, colorset->input);
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}
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}
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}
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void render_frame(struct swaylock_surface *surface) {
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struct swaylock_state *state = surface->state;
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int buffer_width = surface->width * surface->scale;
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int buffer_height = surface->height * surface->scale;
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if (buffer_width == 0 || buffer_height == 0) {
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return; // not yet configured
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}
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surface->current_buffer = get_next_buffer(state->shm,
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surface->buffers, buffer_width, buffer_height);
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if (surface->current_buffer == NULL) {
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return;
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}
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cairo_t *cairo = surface->current_buffer->cairo;
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cairo_set_antialias(cairo, CAIRO_ANTIALIAS_BEST);
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cairo_font_options_t *fo = cairo_font_options_create();
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cairo_font_options_set_hint_style(fo, CAIRO_HINT_STYLE_FULL);
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cairo_font_options_set_antialias(fo, CAIRO_ANTIALIAS_SUBPIXEL);
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cairo_font_options_set_subpixel_order(fo, to_cairo_subpixel_order(surface->subpixel));
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cairo_set_font_options(cairo, fo);
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cairo_font_options_destroy(fo);
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cairo_identity_matrix(cairo);
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cairo_save(cairo);
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cairo_set_operator(cairo, CAIRO_OPERATOR_SOURCE);
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cairo_set_source_u32(cairo, state->args.colors.background);
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cairo_paint(cairo);
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if (surface->image && state->args.mode != BACKGROUND_MODE_SOLID_COLOR) {
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cairo_set_operator(cairo, CAIRO_OPERATOR_OVER);
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render_background_image(cairo, surface->image,
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state->args.mode, buffer_width, buffer_height);
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}
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cairo_restore(cairo);
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cairo_identity_matrix(cairo);
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int arc_radius = state->args.radius * surface->scale;
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int arc_thickness = state->args.thickness * surface->scale;
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float type_indicator_border_thickness =
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TYPE_INDICATOR_BORDER_THICKNESS * surface->scale;
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if (state->args.show_indicator && state->auth_state != AUTH_STATE_IDLE) {
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// Draw circle
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cairo_set_line_width(cairo, arc_thickness);
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cairo_arc(cairo, buffer_width / 2, buffer_height / 2, arc_radius,
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0, 2 * M_PI);
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set_color_for_state(cairo, state, &state->args.colors.inside);
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cairo_fill_preserve(cairo);
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set_color_for_state(cairo, state, &state->args.colors.ring);
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cairo_stroke(cairo);
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// Draw a message
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char *text = NULL;
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char attempts[4]; // like i3lock: count no more than 999
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set_color_for_state(cairo, state, &state->args.colors.text);
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cairo_select_font_face(cairo, state->args.font,
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CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
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cairo_set_font_size(cairo, arc_radius / 3.0f);
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switch (state->auth_state) {
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case AUTH_STATE_VALIDATING:
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text = "verifying";
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break;
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case AUTH_STATE_INVALID:
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text = "wrong";
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break;
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case AUTH_STATE_CLEAR:
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text = "cleared";
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break;
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case AUTH_STATE_INPUT:
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case AUTH_STATE_INPUT_NOP:
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case AUTH_STATE_BACKSPACE:
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// Caps Lock has higher priority
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if (state->xkb.caps_lock && state->args.show_caps_lock_text) {
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text = "Caps Lock";
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} else if (state->args.show_failed_attempts &&
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state->failed_attempts > 0) {
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if (state->failed_attempts > 999) {
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text = "999+";
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} else {
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snprintf(attempts, sizeof(attempts), "%d", state->failed_attempts);
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text = attempts;
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}
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}
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break;
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default:
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break;
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}
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if (text) {
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cairo_text_extents_t extents;
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cairo_font_extents_t fe;
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double x, y;
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cairo_text_extents(cairo, text, &extents);
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cairo_font_extents(cairo, &fe);
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x = (buffer_width / 2) -
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(extents.width / 2 + extents.x_bearing);
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y = (buffer_height / 2) +
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(fe.height / 2 - fe.descent);
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cairo_move_to(cairo, x, y);
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cairo_show_text(cairo, text);
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cairo_close_path(cairo);
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cairo_new_sub_path(cairo);
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}
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// Typing indicator: Highlight random part on keypress
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if (state->auth_state == AUTH_STATE_INPUT
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|| state->auth_state == AUTH_STATE_BACKSPACE) {
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static double highlight_start = 0;
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highlight_start +=
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(rand() % (int)(M_PI * 100)) / 100.0 + M_PI * 0.5;
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cairo_arc(cairo, buffer_width / 2, buffer_height / 2,
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arc_radius, highlight_start,
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highlight_start + TYPE_INDICATOR_RANGE);
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if (state->auth_state == AUTH_STATE_INPUT) {
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if (state->xkb.caps_lock && state->args.show_caps_lock_indicator) {
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cairo_set_source_u32(cairo, state->args.colors.caps_lock_key_highlight);
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} else {
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cairo_set_source_u32(cairo, state->args.colors.key_highlight);
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}
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} else {
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if (state->xkb.caps_lock && state->args.show_caps_lock_indicator) {
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cairo_set_source_u32(cairo, state->args.colors.caps_lock_bs_highlight);
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} else {
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cairo_set_source_u32(cairo, state->args.colors.bs_highlight);
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}
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}
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cairo_stroke(cairo);
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// Draw borders
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cairo_set_source_u32(cairo, state->args.colors.separator);
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cairo_arc(cairo, buffer_width / 2, buffer_height / 2,
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arc_radius, highlight_start,
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highlight_start + type_indicator_border_thickness);
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cairo_stroke(cairo);
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cairo_arc(cairo, buffer_width / 2, buffer_height / 2,
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arc_radius, highlight_start + TYPE_INDICATOR_RANGE,
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highlight_start + TYPE_INDICATOR_RANGE +
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type_indicator_border_thickness);
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cairo_stroke(cairo);
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}
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// Draw inner + outer border of the circle
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set_color_for_state(cairo, state, &state->args.colors.line);
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cairo_set_line_width(cairo, 2.0 * surface->scale);
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cairo_arc(cairo, buffer_width / 2, buffer_height / 2,
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arc_radius - arc_thickness / 2, 0, 2 * M_PI);
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cairo_stroke(cairo);
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cairo_arc(cairo, buffer_width / 2, buffer_height / 2,
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arc_radius + arc_thickness / 2, 0, 2 * M_PI);
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cairo_stroke(cairo);
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}
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wl_surface_set_buffer_scale(surface->surface, surface->scale);
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wl_surface_attach(surface->surface, surface->current_buffer->buffer, 0, 0);
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wl_surface_damage(surface->surface, 0, 0, surface->width, surface->height);
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wl_surface_commit(surface->surface);
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}
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void render_frames(struct swaylock_state *state) {
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struct swaylock_surface *surface;
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wl_list_for_each(surface, &state->surfaces, link) {
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render_frame(surface);
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}
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}
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