]> git.sur5r.net Git - i3/i3lock/blobdiff - unlock_indicator.c
Merge pull request #213 from trickeydan/patch-1
[i3/i3lock] / unlock_indicator.c
index ac7db09dbfaf55f68f8482221cdd24c886a59748..8ff8173c333334d03291bd6416a1b431c41ab3dc 100644 (file)
@@ -1,7 +1,7 @@
 /*
  * vim:ts=4:sw=4:expandtab
  *
- * © 2010-2014 Michael Stapelberg
+ * © 2010 Michael Stapelberg
  *
  * See LICENSE for licensing information
  *
@@ -9,6 +9,7 @@
 #include <stdbool.h>
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
 #include <math.h>
 #include <xcb/xcb.h>
 #include <ev.h>
@@ -18,7 +19,8 @@
 #include "i3lock.h"
 #include "xcb.h"
 #include "unlock_indicator.h"
-#include "xinerama.h"
+#include "randr.h"
+#include "dpi.h"
 
 #define BUTTON_RADIUS 90
 #define BUTTON_SPACE (BUTTON_RADIUS + 5)
@@ -44,6 +46,9 @@ 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;
 
@@ -52,6 +57,11 @@ extern bool tile;
 /* The background color to use (in hex). */
 extern char color[7];
 
+/* 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.
  ******************************************************************************/
@@ -69,18 +79,7 @@ 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);
-}
+auth_state_t auth_state;
 
 /*
  * Draws global image with fill color onto a pixmap with the given
@@ -89,9 +88,10 @@ static double scaling_factor(void) {
  */
 xcb_pixmap_t draw_image(uint32_t *resolution) {
     xcb_pixmap_t bg_pixmap = XCB_NONE;
-    int button_diameter_physical = ceil(scaling_factor() * BUTTON_DIAMETER);
+    const double scaling_factor = get_dpi_value() / 96.0;
+    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);
+          scaling_factor, button_diameter_physical);
 
     if (!vistype)
         vistype = get_root_visual_type(screen);
@@ -131,8 +131,9 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
         cairo_fill(xcb_ctx);
     }
 
-    if (unlock_state >= STATE_KEY_PRESSED && unlock_indicator) {
-        cairo_scale(ctx, scaling_factor(), scaling_factor());
+    if (unlock_indicator &&
+        (unlock_state >= STATE_KEY_PRESSED || auth_state > STATE_AUTH_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,
@@ -144,28 +145,41 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
 
         /* 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, 0, 114.0/255, 255.0/255, 0.75);
+        switch (auth_state) {
+            case STATE_AUTH_VERIFY:
+            case STATE_AUTH_LOCK:
+                cairo_set_source_rgba(ctx, 0, 114.0 / 255, 255.0 / 255, 0.75);
                 break;
-            case STATE_PAM_WRONG:
-                cairo_set_source_rgba(ctx, 250.0/255, 0, 0, 0.75);
+            case STATE_AUTH_WRONG:
+            case STATE_I3LOCK_LOCK_FAILED:
+                cairo_set_source_rgba(ctx, 250.0 / 255, 0, 0, 0.75);
                 break;
             default:
+                if (unlock_state == STATE_NOTHING_TO_DELETE) {
+                    cairo_set_source_rgba(ctx, 250.0 / 255, 0, 0, 0.75);
+                    break;
+                }
                 cairo_set_source_rgba(ctx, 0, 0, 0, 0.75);
                 break;
         }
         cairo_fill_preserve(ctx);
 
-        switch (pam_state) {
-            case STATE_PAM_VERIFY:
-                cairo_set_source_rgb(ctx, 51.0/255, 0, 250.0/255);
+        switch (auth_state) {
+            case STATE_AUTH_VERIFY:
+            case STATE_AUTH_LOCK:
+                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);
+            case STATE_AUTH_WRONG:
+            case STATE_I3LOCK_LOCK_FAILED:
+                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);
+            case STATE_AUTH_IDLE:
+                if (unlock_state == STATE_NOTHING_TO_DELETE) {
+                    cairo_set_source_rgb(ctx, 125.0 / 255, 51.0 / 255, 0);
+                    break;
+                }
+
+                cairo_set_source_rgb(ctx, 51.0 / 255, 125.0 / 255, 0);
                 break;
         }
         cairo_stroke(ctx);
@@ -185,14 +199,39 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
 
         /* Display a (centered) text of the current PAM state. */
         char *text = NULL;
-        switch (pam_state) {
-            case STATE_PAM_VERIFY:
-                text = "verifying…";
+        /* We don't want to show more than a 3-digit number. */
+        char buf[4];
+
+        cairo_set_source_rgb(ctx, 0, 0, 0);
+        cairo_select_font_face(ctx, "sans-serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
+        cairo_set_font_size(ctx, 28.0);
+        switch (auth_state) {
+            case STATE_AUTH_VERIFY:
+                text = "Verifying…";
+                break;
+            case STATE_AUTH_LOCK:
+                text = "Locking…";
+                break;
+            case STATE_AUTH_WRONG:
+                text = "Wrong!";
                 break;
-            case STATE_PAM_WRONG:
-                text = "wrong!";
+            case STATE_I3LOCK_LOCK_FAILED:
+                text = "Lock failed!";
                 break;
             default:
+                if (unlock_state == STATE_NOTHING_TO_DELETE) {
+                    text = "No input";
+                }
+                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_rgb(ctx, 1, 0, 0);
+                    cairo_set_font_size(ctx, 32.0);
+                }
                 break;
         }
 
@@ -200,9 +239,6 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
             cairo_text_extents_t extents;
             double x, y;
 
-            cairo_set_source_rgb(ctx, 0, 0, 0);
-            cairo_set_font_size(ctx, 28.0);
-
             cairo_text_extents(ctx, text, &extents);
             x = BUTTON_CENTER - ((extents.width / 2) + extents.x_bearing);
             y = BUTTON_CENTER - ((extents.height / 2) + extents.y_bearing);
@@ -212,6 +248,21 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
             cairo_close_path(ctx);
         }
 
+        if (auth_state == STATE_AUTH_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. */
@@ -227,10 +278,10 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
                       highlight_start + (M_PI / 3.0));
             if (unlock_state == STATE_KEY_ACTIVE) {
                 /* For normal keys, we use a lighter green. */
-                cairo_set_source_rgb(ctx, 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. */
-                cairo_set_source_rgb(ctx, 219.0/255, 51.0/255, 0);
+                cairo_set_source_rgb(ctx, 219.0 / 255, 51.0 / 255, 0);
             }
             cairo_stroke(ctx);
 
@@ -248,8 +299,8 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
                       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 */);
+                      (highlight_start + (M_PI / 3.0)) - (M_PI / 128.0) /* start */,
+                      highlight_start + (M_PI / 3.0) /* end */);
             cairo_stroke(ctx);
         }
     }
@@ -286,8 +337,9 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
  *
  */
 void redraw_screen(void) {
+    DEBUG("redraw_screen(unlock_state = %d, auth_state = %d)\n", unlock_state, auth_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 });
+    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]);
@@ -303,6 +355,7 @@ void redraw_screen(void) {
 void clear_indicator(void) {
     if (input_position == 0) {
         unlock_state = STATE_STARTED;
-    } else unlock_state = STATE_KEY_PRESSED;
+    } else
+        unlock_state = STATE_KEY_PRESSED;
     redraw_screen();
 }