]> Dogcows Code - chaz/openbox/blobdiff - openbox/keyboard.c
add copyright headers, adjust --version output to include copyright, and --help outpu...
[chaz/openbox] / openbox / keyboard.c
index 70ac3ffcfd0038b64d3075ecf86ce7493affc137..e425c6a430fca69b6b83cd380c8389b852a77e2d 100644 (file)
-#include "focus.h"
-#include "openbox.h"
-#include "keyboard.h"
-#include "clientwrap.h"
+/* -*- indent-tabs-mode: t; tab-width: 4; c-basic-offset: 4; -*-
 
-#include <Python.h>
-#include <glib.h>
-#ifdef HAVE_STRING_H
-#  include <string.h>
-#endif
+   keyboard.c for the Openbox window manager
+   Copyright (c) 2003        Ben Jansens
 
-typedef struct KeyBindingTree {
-    guint state;
-    guint key;
-    GList *keylist;
-    PyObject *func;
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
 
-    /* the next binding in the tree at the same level */
-    struct KeyBindingTree *next_sibling; 
-    /* the first child of this binding (next binding in a chained sequence).*/
-    struct KeyBindingTree *first_child;
-} KeyBindingTree;
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
+   See the COPYING file for a copy of the GNU General Public License.
+*/
 
-static KeyBindingTree *firstnode, *curpos;
-static guint reset_key, reset_state;
-static gboolean grabbed, user_grabbed;
-static PyObject *grab_func;
+#include "mainloop.h"
+#include "focus.h"
+#include "screen.h"
+#include "frame.h"
+#include "openbox.h"
+#include "event.h"
+#include "grab.h"
+#include "client.h"
+#include "action.h"
+#include "prop.h"
+#include "config.h"
+#include "keytree.h"
+#include "keyboard.h"
+#include "translate.h"
+#include "moveresize.h"
 
-/***************************************************************************
-   Define the type 'KeyboardData'
+#include <glib.h>
 
- ***************************************************************************/
+KeyBindingTree *keyboard_firstnode;
 
-typedef struct KeyboardData {
-    PyObject_HEAD
-    PyObject *keychain;
+typedef struct {
     guint state;
-    guint keycode;
-    gboolean press;
-} KeyboardData;
+    ObClient *client;
+    ObAction *action;
+    ObFrameContext context;
+} ObInteractiveState;
 
-staticforward PyTypeObject KeyboardDataType;
+static GSList *interactive_states;
 
-/***************************************************************************
-   Type methods/struct
- ***************************************************************************/
+static KeyBindingTree *curpos;
 
-static PyObject *keybdata_new(PyObject *keychain, guint state,
-                             guint keycode, gboolean press)
+static void grab_for_window(Window win, gboolean grab)
 {
-    KeyboardData *data = PyObject_New(KeyboardData, &KeyboardDataType);
-    data->keychain = keychain;
-    Py_INCREF(keychain);
-    data->state = state;
-    data->keycode = keycode;
-    data->press = press;
-    return (PyObject*) data;
+    KeyBindingTree *p;
+
+    ungrab_all_keys(win);
+
+    if (grab) {
+        p = curpos ? curpos->first_child : keyboard_firstnode;
+        while (p) {
+            grab_key(p->key, p->state, win, GrabModeAsync);
+            p = p->next_sibling;
+        }
+        if (curpos)
+            grab_key(config_keyboard_reset_keycode,
+                     config_keyboard_reset_state,
+                     win, GrabModeAsync);
+    }
 }
 
-static void keybdata_dealloc(KeyboardData *self)
+void keyboard_grab_for_client(ObClient *c, gboolean grab)
 {
-    Py_DECREF(self->keychain);
-    PyObject_Del((PyObject*)self);
+    grab_for_window(c->window, grab);
 }
 
-static PyObject *keybdata_getattr(KeyboardData *self, char *name)
+static void grab_keys(gboolean grab)
 {
-    if (!strcmp(name, "keychain")) {
-       Py_INCREF(self->keychain);
-       return self->keychain;
-    } else if (!strcmp(name, "state"))
-       return PyInt_FromLong(self->state);
-    else if (!strcmp(name, "keycode"))
-       return PyInt_FromLong(self->keycode);
-    else if (!strcmp(name, "press"))
-       return PyInt_FromLong(!!self->press);
-
-    PyErr_Format(PyExc_AttributeError, "no such attribute '%s'", name);
-    return NULL;
+    GList *it;
+
+    grab_for_window(screen_support_win, grab);
+    for (it = client_list; it; it = g_list_next(it))
+        grab_for_window(((ObClient*)it->data)->window, grab);
 }
 
-static PyTypeObject KeyboardDataType = {
-    PyObject_HEAD_INIT(NULL)
-    0,
-    "KeyboardData",
-    sizeof(KeyboardData),
-    0,
-    (destructor) keybdata_dealloc,  /*tp_dealloc*/
-    0,                              /*tp_print*/
-    (getattrfunc) keybdata_getattr, /*tp_getattr*/
-    0,                              /*tp_setattr*/
-    0,                              /*tp_compare*/
-    0,                              /*tp_repr*/
-    0,                              /*tp_as_number*/
-    0,                              /*tp_as_sequence*/
-    0,                              /*tp_as_mapping*/
-    0,                              /*tp_hash */
-};
-
-/***************************************************************************/
-
-
-
-static gboolean grab_keyboard(gboolean grab)
+static gboolean chain_timeout(gpointer data)
 {
-    gboolean ret = TRUE;
+    keyboard_reset_chains();
 
-    g_message("grab_keyboard(%s). grabbed: %d", (grab?"True":"False"),grabbed);
+    return FALSE; /* don't repeat */
+}
 
-    user_grabbed = grab;
-    if (!grabbed) {
-       if (grab)
-           ret = XGrabKeyboard(ob_display, ob_root, 0, GrabModeAsync, 
-                               GrabModeAsync, CurrentTime) == GrabSuccess;
-       else
-           XUngrabKeyboard(ob_display, CurrentTime);
+void keyboard_reset_chains()
+{
+    ob_main_loop_timeout_remove(ob_main_loop, chain_timeout);
+
+    if (curpos) {
+        grab_keys(FALSE);
+        curpos = NULL;
+        grab_keys(TRUE);
     }
-    return ret;
 }
 
-/***************************************************************************
-   Define the type 'Keyboard'
+gboolean keyboard_bind(GList *keylist, ObAction *action)
+{
+    KeyBindingTree *tree, *t;
+    gboolean conflict;
+    gboolean mods = TRUE;
+
+    g_assert(keylist != NULL);
+    g_assert(action != NULL);
+
+    if (!(tree = tree_build(keylist)))
+        return FALSE;
+
+    if ((t = tree_find(tree, &conflict)) != NULL) {
+       /* already bound to something, use the existing tree */
+        tree_destroy(tree);
+        tree = NULL;
+    } else
+        t = tree;
+
+    if (conflict) {
+        g_warning("conflict with binding");
+        tree_destroy(tree);
+        return FALSE;
+    }
 
- ***************************************************************************/
+    /* find if every key in this chain has modifiers, and also find the
+       bottom node of the tree */
+    while (t->first_child) {
+        if (!t->state)
+            mods = FALSE;
+        t = t->first_child;
+    }
 
-#define IS_KEYBOARD(v)  ((v)->ob_type == &KeyboardType)
-#define CHECK_KEYBOARD(self, funcname) { \
-    if (!IS_KEYBOARD(self)) { \
-        PyErr_SetString(PyExc_TypeError, \
-                       "descriptor '" funcname "' requires a 'Keyboard' " \
-                       "object"); \
-       return NULL; \
-    } \
+    /* when there are no modifiers in the binding, then the action cannot
+       be interactive */
+    if (!mods && action->data.any.interactive) {
+        action->data.any.interactive = FALSE;
+        action->data.inter.final = TRUE;
+    }
+
+    /* set the action */
+    t->actions = g_slist_append(t->actions, action);
+    /* assimilate this built tree into the main tree. assimilation
+       destroys/uses the tree */
+    if (tree) tree_assimilate(tree);
+
+    return TRUE;
 }
 
-typedef struct Keyboard {
-    PyObject_HEAD
-} Keyboard;
+void keyboard_interactive_grab(guint state, ObClient *client,
+                               ObAction *action)
+{
+    ObInteractiveState *s;
 
-staticforward PyTypeObject KeyboardType;
+    g_assert(action->data.any.interactive);
 
+    if (moveresize_in_progress)
+        moveresize_end(FALSE);
 
-static PyObject *keyb_clearBinds(Keyboard *self, PyObject *args)
-{
-    CHECK_KEYBOARD(self, "clearBinds");
-    if (!PyArg_ParseTuple(args, ":clearBinds"))
-       return NULL;
-    clearall();
-    Py_INCREF(Py_None);
-    return Py_None;
+    if (!interactive_states) {
+        if (!grab_keyboard(TRUE))
+            return;
+        if (!grab_pointer(TRUE, OB_CURSOR_NONE)) {
+            grab_keyboard(FALSE);
+            return;
+        }
+    }
+
+    s = g_new(ObInteractiveState, 1);
+
+    s->state = state;
+    s->client = client;
+    s->action = action;
+
+    interactive_states = g_slist_append(interactive_states, s);
 }
 
-static PyObject *keyb_grab(Keyboard *self, PyObject *args)
+void keyboard_interactive_end(ObInteractiveState *s,
+                              guint state, gboolean cancel)
 {
-    PyObject *func;
-
-    CHECK_KEYBOARD(self, "grab");
-    if (!PyArg_ParseTuple(args, "O:grab", &func))
-       return NULL;
-    if (!PyCallable_Check(func)) {
-       PyErr_SetString(PyExc_ValueError, "expected a callable object");
-       return NULL;
-    }
-    if (!grab_keyboard(TRUE)) {
-       PyErr_SetString(PyExc_RuntimeError, "failed to grab keyboard");
-       return NULL;
+    action_run_interactive(s->action, s->client, state, cancel, TRUE);
+
+    g_free(s);
+
+    interactive_states = g_slist_remove(interactive_states, s);
+
+    if (!interactive_states) {
+        grab_keyboard(FALSE);
+        grab_pointer(FALSE, OB_CURSOR_NONE);
+        keyboard_reset_chains();
     }
-    grab_func = func;
-    Py_INCREF(grab_func);
-    Py_INCREF(Py_None);
-    return Py_None;
 }
 
-static PyObject *keyb_ungrab(Keyboard *self, PyObject *args)
+void keyboard_interactive_end_client(gpointer data)
 {
-    CHECK_KEYBOARD(self, "ungrab");
-    if (!PyArg_ParseTuple(args, ":ungrab"))
-       return NULL;
-    grab_keyboard(FALSE);
-    Py_XDECREF(grab_func);
-    grab_func = NULL;
-    Py_INCREF(Py_None);
-    return Py_None;
+    GSList *it, *next;
+    ObClient *c = data;
+
+    for (it = interactive_states; it; it = next) {
+        ObInteractiveState *s = it->data;
+
+        next = g_slist_next(it);
+
+        if (s->client == c)
+            keyboard_interactive_end(s, 0, FALSE);
+    }
 }
 
-#define METH(n, d) {#n, (PyCFunction)keyb_##n, METH_VARARGS, #d}
-
-static PyMethodDef KeyboardMethods[] = {
-    METH(bind,
-        "bind(keychain, func)\n\n"
-        "Binds a key-chain to a function. The keychain is a tuple of strings "
-        "which define a chain of key presses. Each member of the tuple has "
-        "the format [Modifier-]...[Key]. Modifiers can be 'mod1', 'mod2', "
-        "'mod3', 'mod4', 'mod5', 'control', and 'shift'. The keys on your "
-        "keyboard that are bound to each of these modifiers can be found by "
-        "running 'xmodmap'. The Key can be any valid key definition. Key "
-        "definitions can be found by running 'xev', pressing the key while "
-        "its window is focused, and watching its output. Here are some "
-        "examples of valid keychains: ('a'), ('F7'), ('control-a', 'd'), "
-        "('control-mod1-x', 'control-mod4-g'), ('F1', 'space'). The func "
-        "must have a definition similar to 'def func(keydata, client)'. A "
-        "keychain cannot be bound to more than one function."),
-    METH(clearBinds,
-        "clearBinds()\n\n"
-        "Removes all bindings that were previously made by bind()."),
-    METH(grab,
-        "grab(func)\n\n"
-        "Grabs the entire keyboard, causing all possible keyboard events to "
-        "be passed to the given function. CAUTION: Be sure when you grab() "
-        "that you also have an ungrab() that will execute, or you will not "
-        "be able to type until you restart Openbox. The func must have a "
-        "definition similar to 'def func(keydata)'. The keyboard cannot be "
-        "grabbed if it is already grabbed."),
-    METH(ungrab,
-        "ungrab()\n\n"
-        "Ungrabs the keyboard. The keyboard cannot be ungrabbed if it is not "
-        "grabbed."),
-    { NULL, NULL, 0, NULL }
-};
-
-/***************************************************************************
-   Type methods/struct
- ***************************************************************************/
-
-static void keyb_dealloc(PyObject *self)
+gboolean keyboard_process_interactive_grab(const XEvent *e, ObClient **client)
 {
-    PyObject_Del(self);
+    GSList *it, *next;
+    gboolean handled = FALSE;
+    gboolean done = FALSE;
+    gboolean cancel = FALSE;
+
+    for (it = interactive_states; it; it = next) {
+        ObInteractiveState *s = it->data;
+
+        next = g_slist_next(it);
+        
+        if ((e->type == KeyRelease && 
+             !(s->state & e->xkey.state)))
+            done = TRUE;
+        else if (e->type == KeyPress) {
+            if (e->xkey.keycode == ob_keycode(OB_KEY_RETURN))
+                done = TRUE;
+            else if (e->xkey.keycode == ob_keycode(OB_KEY_ESCAPE))
+                cancel = done = TRUE;
+        }
+        if (done) {
+            keyboard_interactive_end(s, e->xkey.state, cancel);
+
+            handled = TRUE;
+        } else
+            *client = s->client;
+    }
+
+    return handled;
 }
 
-static PyTypeObject KeyboardType = {
-    PyObject_HEAD_INIT(NULL)
-    0,
-    "Keyboard",
-    sizeof(Keyboard),
-    0,
-    (destructor) keyb_dealloc,      /*tp_dealloc*/
-    0,                              /*tp_print*/
-    0,                              /*tp_getattr*/
-    0,                              /*tp_setattr*/
-    0,                              /*tp_compare*/
-    0,                              /*tp_repr*/
-    0,                              /*tp_as_number*/
-    0,                              /*tp_as_sequence*/
-    0,                              /*tp_as_mapping*/
-    0,                              /*tp_hash */
-};
-
-/**************************************************************************/
-
-void keyboard_startup()
+void keyboard_event(ObClient *client, const XEvent *e)
 {
-    PyObject *input, *inputdict, *ptr;
-    gboolean b;
-
-    curpos = firstnode = NULL;
-    grabbed = user_grabbed = FALSE;
+    KeyBindingTree *p;
 
-    b = translate("C-G", &reset_state, &reset_key);
-    g_assert(b);
+    g_assert(e->type == KeyPress);
 
-    KeyboardType.ob_type = &PyType_Type;
-    KeyboardType.tp_methods = KeyboardMethods;
-    PyType_Ready(&KeyboardType);
-    PyType_Ready(&KeyboardDataType);
+    if (e->xkey.keycode == config_keyboard_reset_keycode &&
+        e->xkey.state == config_keyboard_reset_state)
+    {
+        keyboard_reset_chains();
+        return;
+    }
 
-    /* get the input module/dict */
-    input = PyImport_ImportModule("input"); /* new */
-    g_assert(input != NULL);
-    inputdict = PyModule_GetDict(input); /* borrowed */
-    g_assert(inputdict != NULL);
+    if (curpos == NULL)
+        p = keyboard_firstnode;
+    else
+        p = curpos->first_child;
+    while (p) {
+        if (p->key == e->xkey.keycode &&
+            p->state == e->xkey.state)
+        {
+            if (p->first_child != NULL) { /* part of a chain */
+                ob_main_loop_timeout_remove(ob_main_loop, chain_timeout);
+                /* 5 second timeout for chains */
+                ob_main_loop_timeout_add(ob_main_loop, 5 * G_USEC_PER_SEC,
+                                         chain_timeout, NULL, NULL);
+                grab_keys(FALSE);
+                curpos = p;
+                grab_keys(TRUE);
+            } else {
+                GSList *it;
+
+                for (it = p->actions; it; it = it->next)
+                    action_run_key(it->data, client, e->xkey.state,
+                                   e->xkey.x_root, e->xkey.y_root);
+
+                keyboard_reset_chains();
+            }
+            break;
+        }
+        p = p->next_sibling;
+    }
+}
 
-    /* add a Keyboard instance to the input module */
-    ptr = (PyObject*) PyObject_New(Keyboard, &KeyboardType);
-    PyDict_SetItemString(inputdict, "Keyboard", ptr);
-    Py_DECREF(ptr);
+void keyboard_startup(gboolean reconfig)
+{
+    grab_keys(TRUE);
 
-    Py_DECREF(input);
+    if (!reconfig)
+        client_add_destructor(keyboard_interactive_end_client);
 }
 
-void keyboard_shutdown()
+void keyboard_shutdown(gboolean reconfig)
 {
-    if (grabbed || user_grabbed) {
-       grabbed = FALSE;
-       grab_keyboard(FALSE);
-    }
+    GSList *it;
+
+    if (!reconfig)
+        client_remove_destructor(keyboard_interactive_end_client);
+
+    tree_destroy(keyboard_firstnode);
+    keyboard_firstnode = NULL;
+
+    for (it = interactive_states; it; it = g_slist_next(it))
+        g_free(it->data);
+    g_slist_free(interactive_states);
+    interactive_states = NULL;
+
+    ob_main_loop_timeout_remove(ob_main_loop, chain_timeout);
     grab_keys(FALSE);
-    destroytree(firstnode);
-    firstnode = NULL;
+    curpos = NULL;
 }
 
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