Merge branch 'backport' into work
[dana/openbox.git] / openbox / prompt.c
index d58402b..df36c8c 100644 (file)
 #include "prompt.h"
 #include "openbox.h"
 #include "screen.h"
-#include "openbox.h"
+#include "client.h"
+#include "event.h"
+#include "obt/display.h"
+#include "obt/keyboard.h"
+#include "obt/prop.h"
 #include "gettext.h"
 
 static GList *prompt_list = NULL;
 
 /* we construct these */
+static RrAppearance *prompt_a_bg;
 static RrAppearance *prompt_a_button;
-static RrAppearance *prompt_a_hover;
+static RrAppearance *prompt_a_focus;
 static RrAppearance *prompt_a_press;
+static RrAppearance *prompt_a_pfocus;
 /* we change the max width which would screw with others */
 static RrAppearance *prompt_a_msg;
 
+/* sizing stuff */
+#define OUTSIDE_MARGIN 4
+#define MSG_BUTTON_SEPARATION 4
+#define BUTTON_SEPARATION 4
+#define BUTTON_VMARGIN 4
+#define BUTTON_HMARGIN 12
+#define MAX_WIDTH 400
+
+static void prompt_layout(ObPrompt *self);
+static void render_all(ObPrompt *self);
+static void render_button(ObPrompt *self, ObPromptElement *e);
+static void prompt_resize(ObPrompt *self, gint w, gint h);
+
 void prompt_startup(gboolean reconfig)
 {
-    RrColor *c_button, *c_hover, *c_press;
+    RrColor *c_button, *c_focus, *c_press, *c_pfocus;
+
+    /* note: this is not a copy, don't free it */
+    prompt_a_bg = ob_rr_theme->osd_hilite_bg;
 
     prompt_a_button = RrAppearanceCopy(ob_rr_theme->a_focused_unpressed_close);
-    prompt_a_hover = RrAppearanceCopy(ob_rr_theme->a_hover_focused_close);
+    prompt_a_focus = RrAppearanceCopy(ob_rr_theme->a_hover_focused_close);
     prompt_a_press = RrAppearanceCopy(ob_rr_theme->a_focused_pressed_close);
+    prompt_a_pfocus = RrAppearanceCopy(ob_rr_theme->a_focused_pressed_close);
 
     c_button = prompt_a_button->texture[0].data.mask.color;
-    c_hover = prompt_a_button->texture[0].data.mask.color;
-    c_press = prompt_a_button->texture[0].data.mask.color;
+    c_focus = prompt_a_focus->texture[0].data.mask.color;
+    c_press = prompt_a_press->texture[0].data.mask.color;
+    c_pfocus = prompt_a_press->texture[0].data.mask.color;
 
     RrAppearanceRemoveTextures(prompt_a_button);
-    RrAppearanceRemoveTextures(prompt_a_hover);
+    RrAppearanceRemoveTextures(prompt_a_focus);
     RrAppearanceRemoveTextures(prompt_a_press);
+    RrAppearanceRemoveTextures(prompt_a_pfocus);
 
+    /* texture[0] is the text and texture[1-4] (for prompt_a_focus and
+       prompt_a_pfocus) is lineart to show where keyboard focus is */
     RrAppearanceAddTextures(prompt_a_button, 1);
-    RrAppearanceAddTextures(prompt_a_hover, 1);
+    RrAppearanceAddTextures(prompt_a_focus, 5);
     RrAppearanceAddTextures(prompt_a_press, 1);
+    RrAppearanceAddTextures(prompt_a_pfocus, 5);
 
     /* totally cheating here.. */
     prompt_a_button->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
-    prompt_a_hover->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
+    prompt_a_focus->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
     prompt_a_press->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
+    prompt_a_pfocus->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
+
+    prompt_a_button->texture[0].data.text.justify = RR_JUSTIFY_CENTER;
+    prompt_a_focus->texture[0].data.text.justify = RR_JUSTIFY_CENTER;
+    prompt_a_press->texture[0].data.text.justify = RR_JUSTIFY_CENTER;
+    prompt_a_pfocus->texture[0].data.text.justify = RR_JUSTIFY_CENTER;
 
     prompt_a_button->texture[0].data.text.color = c_button;
-    prompt_a_hover->texture[0].data.text.color = c_hover;
+    prompt_a_focus->texture[0].data.text.color = c_focus;
     prompt_a_press->texture[0].data.text.color = c_press;
+    prompt_a_pfocus->texture[0].data.text.color = c_press;
+
+    prompt_a_focus->texture[1].data.lineart.color = c_focus;
+    prompt_a_focus->texture[2].data.lineart.color = c_focus;
+    prompt_a_focus->texture[3].data.lineart.color = c_focus;
+    prompt_a_focus->texture[4].data.lineart.color = c_focus;
+
+    prompt_a_pfocus->texture[1].data.lineart.color = c_press;
+    prompt_a_pfocus->texture[2].data.lineart.color = c_press;
+    prompt_a_pfocus->texture[3].data.lineart.color = c_press;
+    prompt_a_pfocus->texture[4].data.lineart.color = c_press;
 
     prompt_a_msg = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
     prompt_a_msg->texture[0].data.text.flow = TRUE;
+
+    if (reconfig) {
+        GList *it;
+        for (it = prompt_list; it; it = g_list_next(it)) {
+            ObPrompt *p = it->data;
+            prompt_layout(p);
+            render_all(p);
+        }
+    }
 }
 
 void prompt_shutdown(gboolean reconfig)
 {
     RrAppearanceFree(prompt_a_button);
-    RrAppearanceFree(prompt_a_hover);
+    RrAppearanceFree(prompt_a_focus);
     RrAppearanceFree(prompt_a_press);
+    RrAppearanceFree(prompt_a_pfocus);
     RrAppearanceFree(prompt_a_msg);
 }
 
-ObPrompt* prompt_new(const gchar *msg, const gchar *const *answers)
+ObPrompt* prompt_new(const gchar *msg,
+                     const ObPromptAnswer *answers, gint n_answers,
+                     gint default_result, gint cancel_result,
+                     ObPromptCallback func, gpointer data)
 {
     ObPrompt *self;
     XSetWindowAttributes attrib;
-    guint i;
-    const gchar *const *c;
+    gint i;
 
-    attrib.override_redirect = TRUE;
-    attrib.border_pixel = RrColorPixel(ob_rr_theme->osd_border_color);
+    attrib.override_redirect = FALSE;
 
     self = g_new0(ObPrompt, 1);
     self->ref = 1;
-    self->super.type = Window_Prompt;
-    self->super.window = XCreateWindow(ob_display,
-                                       RootWindow(ob_display, ob_screen),
+    self->func = func;
+    self->data = data;
+    self->default_result = default_result;
+    self->cancel_result = cancel_result;
+    self->super.type = OB_WINDOW_CLASS_PROMPT;
+    self->super.window = XCreateWindow(obt_display, obt_root(ob_screen),
                                        0, 0, 1, 1, 0,
-                                       0, 0, 1, 1, ob_rr_theme->obwidth,
                                        CopyFromParent, InputOutput,
                                        CopyFromParent,
-                                       CWOverrideRedirect | CWBorderPixel,
+                                       CWOverrideRedirect,
                                        &attrib);
-    g_hash_table_insert(window_map, &self->super.window,
-                        PROMPT_AS_WINDOW(self));
 
-    self->a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
+    /* make it a dialog type window */
+    OBT_PROP_SET32(self->super.window, NET_WM_WINDOW_TYPE, ATOM,
+                   OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DIALOG));
 
+    /* listen for key presses on the window */
+    self->event_mask = KeyPressMask;
+
+    /* set up the text message widow */
     self->msg.text = g_strdup(msg);
-    self->msg.window = XCreateWindow(ob_display, self->super.window,
+    self->msg.window = XCreateWindow(obt_display, self->super.window,
                                      0, 0, 1, 1, 0,
                                      CopyFromParent, InputOutput,
                                      CopyFromParent, 0, NULL);
-    XMapWindow(ob_display, self->msg.window);
+    XMapWindow(obt_display, self->msg.window);
 
-    self->n_buttons = 0;
-    for (c = answers; *c != NULL; ++c)
-        ++self->n_buttons;
+    /* set up the buttons from the answers */
 
+    self->n_buttons = n_answers;
     if (!self->n_buttons)
         self->n_buttons = 1;
 
-    self->button = g_new(ObPromptElement, self->n_buttons);
+    self->button = g_new0(ObPromptElement, self->n_buttons);
 
-    if (!answers) {
+    if (n_answers == 0) {
         g_assert(self->n_buttons == 1); /* should be set to this above.. */
         self->button[0].text = g_strdup(_("OK"));
     }
     else {
         g_assert(self->n_buttons > 0);
-        for (i = 0; i < self->n_buttons; ++i)
-            self->button[i].text = g_strdup(answers[i]);
+        for (i = 0; i < self->n_buttons; ++i) {
+            self->button[i].text = g_strdup(answers[i].text);
+            self->button[i].result = answers[i].result;
+        }
     }
 
     for (i = 0; i < self->n_buttons; ++i) {
-        self->button[i].window = XCreateWindow(ob_display, self->super.window,
+        self->button[i].window = XCreateWindow(obt_display, self->super.window,
                                                0, 0, 1, 1, 0,
                                                CopyFromParent, InputOutput,
                                                CopyFromParent, 0, NULL);
-        XMapWindow(ob_display, self->button[i].window);
-        g_hash_table_insert(window_map, &self->button[i].window,
-                            PROMPT_AS_WINDOW(self));
+        XMapWindow(obt_display, self->button[i].window);
+        window_add(&self->button[i].window, PROMPT_AS_WINDOW(self));
+
+        /* listen for button presses on the buttons */
+        XSelectInput(obt_display, self->button[i].window,
+                     ButtonPressMask | ButtonReleaseMask | ButtonMotionMask);
     }
 
+    prompt_list = g_list_prepend(prompt_list, self);
+
     return self;
 }
 
@@ -145,71 +213,79 @@ void prompt_ref(ObPrompt *self)
 void prompt_unref(ObPrompt *self)
 {
     if (self && --self->ref == 0) {
-        guint i;
+        gint i;
+
+        prompt_list = g_list_remove(prompt_list, self);
 
         for (i = 0; i < self->n_buttons; ++i) {
-            g_hash_table_remove(window_map, &self->button[i].window);
-            XDestroyWindow(ob_display, self->button[i].window);
+            window_remove(self->button[i].window);
+            XDestroyWindow(obt_display, self->button[i].window);
         }
 
-        XDestroyWindow(ob_display, self->msg.window);
-
-        RrAppearanceFree(self->a_bg);
-
-        g_hash_table_remove(window_map, &self->super.window);
-        XDestroyWindow(ob_display, self->super.window);
+        XDestroyWindow(obt_display, self->msg.window);
+        XDestroyWindow(obt_display, self->super.window);
         g_free(self);
     }
 }
 
-static void prompt_layout(ObPrompt *self, const Rect *area)
+static void prompt_layout(ObPrompt *self)
 {
     gint l, r, t, b;
-    guint i;
+    gint i;
     gint allbuttonsw, allbuttonsh, buttonx;
     gint w, h;
+    gint maxw;
 
-    const gint OUTSIDE_MARGIN = 4;
-    const gint MSG_BUTTON_SEPARATION = 4;
-    const gint BUTTON_SEPARATION = 4;
-
-    RrMargins(self->a_bg, &l, &t, &r, &b);
+    RrMargins(prompt_a_bg, &l, &t, &r, &b);
     l += OUTSIDE_MARGIN;
     t += OUTSIDE_MARGIN;
     r += OUTSIDE_MARGIN;
     b += OUTSIDE_MARGIN;
 
+    {
+        Rect *area = screen_physical_area_all_monitors();
+        maxw = MIN(MAX_WIDTH, area->width*4/5);
+        g_free(area);
+    }
+
     /* find the button sizes and how much space we need for them */
     allbuttonsw = allbuttonsh = 0;
     for (i = 0; i < self->n_buttons; ++i) {
         gint bw, bh;
 
         prompt_a_button->texture[0].data.text.string = self->button[i].text;
-        prompt_a_hover->texture[0].data.text.string = self->button[i].text;
+        prompt_a_focus->texture[0].data.text.string = self->button[i].text;
         prompt_a_press->texture[0].data.text.string = self->button[i].text;
+        prompt_a_pfocus->texture[0].data.text.string = self->button[i].text;
         RrMinSize(prompt_a_button, &bw, &bh);
         self->button[i].width = bw;
         self->button[i].height = bh;
-        RrMinSize(prompt_a_hover, &bw, &bh);
+        RrMinSize(prompt_a_focus, &bw, &bh);
+        g_print("button w %d h %d\n", bw, bh);
         self->button[i].width = MAX(self->button[i].width, bw);
         self->button[i].height = MAX(self->button[i].height, bh);
         RrMinSize(prompt_a_press, &bw, &bh);
         self->button[i].width = MAX(self->button[i].width, bw);
         self->button[i].height = MAX(self->button[i].height, bh);
+        RrMinSize(prompt_a_pfocus, &bw, &bh);
+        self->button[i].width = MAX(self->button[i].width, bw);
+        self->button[i].height = MAX(self->button[i].height, bh);
+
+
+        self->button[i].width += BUTTON_HMARGIN * 2;
+        self->button[i].height += BUTTON_VMARGIN * 2;
 
         allbuttonsw += self->button[i].width + (i > 0 ? BUTTON_SEPARATION : 0);
         allbuttonsh = MAX(allbuttonsh, self->button[i].height);
     }
 
-    self->msg_wbound = MAX(allbuttonsw, area->width*3/5);
+    self->msg_wbound = MAX(allbuttonsw, maxw);
 
     /* measure the text message area */
     prompt_a_msg->texture[0].data.text.string = self->msg.text;
     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
     RrMinSize(prompt_a_msg, &self->msg.width, &self->msg.height);
 
-    g_print("height %d\n", self->msg.height);
-
     /* width and height inside the outer margins */
     w = MAX(self->msg.width, allbuttonsw);
     h = self->msg.height + MSG_BUTTON_SEPARATION + allbuttonsh;
@@ -218,52 +294,136 @@ static void prompt_layout(ObPrompt *self, const Rect *area)
     self->msg.x = l + (w - self->msg.width) / 2;
     self->msg.y = t;
 
-    /* position the button buttons */
-    buttonx = l + (w - allbuttonsw) / 2;
-    for (i = 0; i < self->n_buttons; ++i) {
-        self->button[i].x = buttonx;
-        buttonx += self->button[i].width + BUTTON_SEPARATION;
+    /* position the button buttons on the right of the dialog */
+    buttonx = l + w;
+    for (i = self->n_buttons - 1; i >= 0; --i) {
+        self->button[i].x = buttonx - self->button[i].width;
+        buttonx -= self->button[i].width + BUTTON_SEPARATION;
         self->button[i].y = t + h - allbuttonsh;
         self->button[i].y += (allbuttonsh - self->button[i].height) / 2;
     }
 
     /* size and position the toplevel window */
-    self->width = w + l + r;
-    self->height = h + t + b;
-    self->x = (area->width - self->width) / 2;
-    self->y = (area->height - self->height) / 2;
-
-    /* move and resize the actual windows */
-    XMoveResizeWindow(ob_display, self->super.window,
-                      self->x, self->y, self->width, self->height);
-    XMoveResizeWindow(ob_display, self->msg.window,
+    prompt_resize(self, w + l + r, h + t + b);
+
+    /* move and resize the internal windows */
+    XMoveResizeWindow(obt_display, self->msg.window,
                       self->msg.x, self->msg.y,
                       self->msg.width, self->msg.height);
     for (i = 0; i < self->n_buttons; ++i)
-        XMoveResizeWindow(ob_display, self->button[i].window,
+        XMoveResizeWindow(obt_display, self->button[i].window,
                           self->button[i].x, self->button[i].y,
                           self->button[i].width, self->button[i].height);
 }
 
+static void prompt_resize(ObPrompt *self, gint w, gint h)
+{
+    XConfigureRequestEvent req;
+    XSizeHints hints;
+
+    self->width = w;
+    self->height = h;
+
+    /* the user can't resize the prompt */
+    hints.flags = PMinSize | PMaxSize;
+    hints.min_width = hints.max_width = w;
+    hints.min_height = hints.max_height = h;
+    XSetWMNormalHints(obt_display, self->super.window, &hints);
+
+    if (self->mapped) {
+        /* send a configure request like a normal client would */
+        req.type = ConfigureRequest;
+        req.display = obt_display;
+        req.parent = obt_root(ob_screen);
+        req.window = self->super.window;
+        req.width = w;
+        req.height = h;
+        req.value_mask = CWWidth | CWHeight;
+        XSendEvent(req.display, req.window, FALSE, StructureNotifyMask,
+                   (XEvent*)&req);
+    }
+    else
+        XResizeWindow(obt_display, self->super.window, w, h);
+}
+
+static void setup_button_focus_tex(ObPromptElement *e, RrAppearance *a,
+                                   gboolean on)
+{
+    gint i, l, r, t, b;
+
+    for (i = 1; i < 5; ++i)
+        a->texture[i].type = on ? RR_TEXTURE_LINE_ART : RR_TEXTURE_NONE;
+
+    if (!on) return;
+
+    RrMargins(a, &l, &t, &r, &b);
+    l += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
+    r += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
+    t += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
+    b += MIN(BUTTON_HMARGIN, BUTTON_VMARGIN) / 2;
+
+    /* top line */
+    a->texture[1].data.lineart.x1 = l;
+    a->texture[1].data.lineart.x2 = e->width - r - 1;
+    a->texture[1].data.lineart.y1 = t;
+    a->texture[1].data.lineart.y2 = t;
+
+    /* bottom line */
+    a->texture[2].data.lineart.x1 = l;
+    a->texture[2].data.lineart.x2 = e->width - r - 1;
+    a->texture[2].data.lineart.y1 = e->height - b - 1;
+    a->texture[2].data.lineart.y2 = e->height - b - 1;
+
+    /* left line */
+    a->texture[3].data.lineart.x1 = l;
+    a->texture[3].data.lineart.x2 = l;
+    a->texture[3].data.lineart.y1 = t;
+    a->texture[3].data.lineart.y2 = e->height - b - 1;
+
+    /* right line */
+    a->texture[4].data.lineart.x1 = e->width - r - 1;
+    a->texture[4].data.lineart.x2 = e->width - r - 1;
+    a->texture[4].data.lineart.y1 = t;
+    a->texture[4].data.lineart.y2 = e->height - b - 1;
+
+    g_print("setting x2 %d\n", e->width - r - 1);
+}
+
 static void render_button(ObPrompt *self, ObPromptElement *e)
 {
-    prompt_a_button->surface.parent = self->a_bg;
-    prompt_a_button->surface.parentx = e->x;
-    prompt_a_button->surface.parentx = e->y;
+    RrAppearance *a;
+
+    if (e->pressed && self->focus == e) a = prompt_a_pfocus;
+    else if (self->focus == e)          a = prompt_a_focus;
+    else if (e->pressed)                a = prompt_a_press;
+    else                                a = prompt_a_button;
+
+    a->surface.parent = prompt_a_bg;
+    a->surface.parentx = e->x;
+    a->surface.parenty = e->y;
+
+    /* draw the keyfocus line */
+    if (a == prompt_a_pfocus || a == prompt_a_focus)
+        setup_button_focus_tex(e, a, TRUE);
 
-    prompt_a_button->texture[0].data.text.string = e->text;
-    RrPaint(prompt_a_button, e->window, e->width, e->height);
+    a->texture[0].data.text.string = e->text;
+    RrPaint(a, e->window, e->width, e->height);
+
+    /* turn off the keyfocus line so that it doesn't affect size calculations
+     */
+    if (a == prompt_a_pfocus || a == prompt_a_focus)
+        setup_button_focus_tex(e, a, FALSE);
 }
 
 static void render_all(ObPrompt *self)
 {
-    guint i;
+    gint i;
 
-    RrPaint(self->a_bg, self->super.window, self->width, self->height);
+    RrPaint(prompt_a_bg, self->super.window, self->width, self->height);
 
-    prompt_a_msg->surface.parent = self->a_bg;
+    prompt_a_msg->surface.parent = prompt_a_bg;
     prompt_a_msg->surface.parentx = self->msg.x;
-    prompt_a_msg->surface.parentx = self->msg.y;
+    prompt_a_msg->surface.parenty = self->msg.y;
 
     prompt_a_msg->texture[0].data.text.string = self->msg.text;
     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
@@ -273,19 +433,145 @@ static void render_all(ObPrompt *self)
         render_button(self, &self->button[i]);
 }
 
-void prompt_show(ObPrompt *self, const Rect *area)
+void prompt_show(ObPrompt *self, ObClient *parent)
 {
-    if (self->mapped) return;
+    gint i;
+
+    if (self->mapped) {
+        /* activate the prompt */
+        OBT_PROP_MSG(ob_screen, self->super.window, NET_ACTIVE_WINDOW,
+                     1, /* from an application.. */
+                     event_curtime,
+                     0,
+                     0, 0);
+        return;
+    }
+
+    /* set the focused button (if not found then the first button is used) */
+    self->focus = &self->button[0];
+    for (i = 0; i < self->n_buttons; ++i)
+        if (self->button[i].result == self->default_result) {
+            self->focus = &self->button[i];
+            break;
+        }
 
-    prompt_layout(self, area);
+    XSetTransientForHint(obt_display, self->super.window,
+                         (parent ? parent->window : 0));
+
+    /* set up the dialog and render it */
+    prompt_layout(self);
     render_all(self);
-    XMapWindow(ob_display, self->super.window);
+
+    client_manage(self->super.window, self);
 
     self->mapped = TRUE;
 }
 
 void prompt_hide(ObPrompt *self)
 {
-    XUnmapWindow(ob_display, self->super.window);
+    XUnmapWindow(obt_display, self->super.window);
     self->mapped = FALSE;
 }
+
+gboolean prompt_key_event(ObPrompt *self, XEvent *e)
+{
+    gboolean shift;
+    guint shift_mask;
+
+    if (e->type != KeyPress) return FALSE;
+
+    shift_mask = obt_keyboard_modkey_to_modmask(OBT_KEYBOARD_MODKEY_SHIFT);
+    shift = !!(e->xkey.state & shift_mask);
+
+    /* only accept shift */
+    if (e->xkey.state != 0 && e->xkey.state != shift_mask)
+        return FALSE;
+
+    if (e->xkey.keycode == ob_keycode(OB_KEY_ESCAPE))
+        prompt_cancel(self);
+    else if (e->xkey.keycode == ob_keycode(OB_KEY_RETURN) ||
+             e->xkey.keycode == ob_keycode(OB_KEY_SPACE))
+    {
+        if (self->func) self->func(self, self->focus->result, self->data);
+        prompt_hide(self);
+    }
+    else if (e->xkey.keycode == ob_keycode(OB_KEY_TAB) ||
+             e->xkey.keycode == ob_keycode(OB_KEY_LEFT) ||
+             e->xkey.keycode == ob_keycode(OB_KEY_RIGHT))
+    {
+        gint i;
+        gboolean left;
+        ObPromptElement *oldfocus;
+
+        left = e->xkey.keycode == ob_keycode(OB_KEY_LEFT) ||
+            (e->xkey.keycode == ob_keycode(OB_KEY_TAB) && shift);
+        oldfocus = self->focus;
+
+        for (i = 0; i < self->n_buttons; ++i)
+            if (self->focus == &self->button[i]) break;
+        i += (left ? -1 : 1);
+        if (i < 0) i = self->n_buttons - 1;
+        else if (i >= self->n_buttons) i = 0;
+        self->focus = &self->button[i];
+
+        if (oldfocus != self->focus) render_button(self, oldfocus);
+        render_button(self, self->focus);
+    }
+    return TRUE;
+}
+
+gboolean prompt_mouse_event(ObPrompt *self, XEvent *e)
+{
+    gint i;
+    ObPromptElement *but;
+
+    if (e->type != ButtonPress && e->type != ButtonRelease &&
+        e->type != MotionNotify) return FALSE;
+
+    /* find the button */
+    but = NULL;
+    for (i = 0; i < self->n_buttons; ++i)
+        if (self->button[i].window ==
+            (e->type == MotionNotify ? e->xmotion.window : e->xbutton.window))
+        {
+            but = &self->button[i];
+            break;
+        }
+    if (!but) return FALSE;
+
+    if (e->type == ButtonPress) {
+        ObPromptElement *oldfocus;
+
+        oldfocus = self->focus;
+
+        but->pressed = TRUE;
+        self->focus = but;
+
+        if (oldfocus != but) render_button(self, oldfocus);
+        render_button(self, but);
+    }
+    else if (e->type == ButtonRelease) {
+        if (but->pressed) {
+            if (self->func) self->func(self, but->result, self->data);
+            prompt_hide(self);
+        }
+    }
+    else if (e->type == MotionNotify) {
+        gboolean press;
+
+        press = (e->xmotion.x >= 0 && e->xmotion.y >= 0 &&
+                 e->xmotion.x < but->width && e->xmotion.y < but->height);
+
+        if (press != but->pressed) {
+            but->pressed = press;
+            render_button(self, but);
+        }
+    }
+    return TRUE;
+}
+
+void prompt_cancel(ObPrompt *self)
+{
+    if (self->func) self->func(self, self->cancel_result, self->data);
+    prompt_hide(self);
+}