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Add lock key modifier bits input mode

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This adds the GLFW_MOD_CAPS_LOCK and GLFW_MOD_NUM_LOCK modifier bits.
Set the GLFW_LOCK_KEY_MODS input mode to enable these for all callbacks
that receive modifier bits.

Fixes #946.
This commit is contained in:
Camilla Löwy 2017-11-29 20:42:37 +01:00
parent fd72eb917e
commit 0e8c4ea7ce
12 changed files with 107 additions and 10 deletions
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1
README.md
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@ -159,6 +159,7 @@ information on what to include when reporting a bug.
- Added `GLFW_CENTER_CURSOR` window hint for controlling cursor centering
(#749,#842)
- Added `GLFW_JOYSTICK_HAT_BUTTONS` init hint (#889)
- Added `GLFW_LOCK_KEY_MODS` input mode and `GLFW_MOD_*_LOCK` mod bits (#946)
- Added macOS specific `GLFW_COCOA_RETINA_FRAMEBUFFER` window hint
- Added macOS specific `GLFW_COCOA_FRAME_AUTOSAVE` window hint (#195)
- Added macOS specific `GLFW_COCOA_GRAPHICS_SWITCHING` window hint (#377,#935)

13
docs/input.dox
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@ -170,6 +170,19 @@ When sticky keys mode is enabled, the pollable state of a key will remain
it has been polled, if a key release event had been processed in the meantime,
the state will reset to `GLFW_RELEASE`, otherwise it will remain `GLFW_PRESS`.
@anchor GLFW_LOCK_KEY_MODS
If you wish to know what the state of the Caps Lock and Num Lock keys was when
input events were generated, set the `GLFW_LOCK_KEY_MODS` input mode.
@code
glfwSetInputMode(window, GLFW_LOCK_KEY_MODS, 1);
@endcode
When this input mode is enabled, any callback that receives
[modifier bits](@ref mods) will have the @ref GLFW_MOD_CAPS_LOCK bit set if Caps
Lock was on when the event occurred and the @ref GLFW_MOD_NUM_LOCK bit set if
Num Lock was on.
The `GLFW_KEY_LAST` constant holds the highest value of any
[named key](@ref keys).

43
include/GLFW/glfw3.h
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@ -493,17 +493,37 @@ extern "C" {
* @{ */
/*! @brief If this bit is set one or more Shift keys were held down.
*
* If this bit is set one or more Shift keys were held down.
*/
#define GLFW_MOD_SHIFT 0x0001
/*! @brief If this bit is set one or more Control keys were held down.
*
* If this bit is set one or more Control keys were held down.
*/
#define GLFW_MOD_CONTROL 0x0002
/*! @brief If this bit is set one or more Alt keys were held down.
*
* If this bit is set one or more Alt keys were held down.
*/
#define GLFW_MOD_ALT 0x0004
/*! @brief If this bit is set one or more Super keys were held down.
*
* If this bit is set one or more Super keys were held down.
*/
#define GLFW_MOD_SUPER 0x0008
/*! @brief If this bit is set the Caps Lock key is enabled.
*
* If this bit is set the Caps Lock key is enabled and the @ref
* GLFW_LOCK_KEY_MODS input mode is set.
*/
#define GLFW_MOD_CAPS_LOCK 0x0010
/*! @brief If this bit is set the Num Lock key is enabled.
*
* If this bit is set the Num Lock key is enabled and the @ref
* GLFW_LOCK_KEY_MODS input mode is set.
*/
#define GLFW_MOD_NUM_LOCK 0x0020
/*! @} */
@ -963,6 +983,7 @@ extern "C" {
#define GLFW_CURSOR 0x00033001
#define GLFW_STICKY_KEYS 0x00033002
#define GLFW_STICKY_MOUSE_BUTTONS 0x00033003
#define GLFW_LOCK_KEY_MODS 0x00033004
#define GLFW_CURSOR_NORMAL 0x00034001
#define GLFW_CURSOR_HIDDEN 0x00034002
@ -3657,12 +3678,12 @@ GLFWAPI void glfwPostEmptyEvent(void);
/*! @brief Returns the value of an input option for the specified window.
*
* This function returns the value of an input option for the specified window.
* The mode must be one of @ref GLFW_CURSOR, @ref GLFW_STICKY_KEYS or
* @ref GLFW_STICKY_MOUSE_BUTTONS.
* The mode must be one of @ref GLFW_CURSOR, @ref GLFW_STICKY_KEYS,
* @ref GLFW_STICKY_MOUSE_BUTTONS or @ref GLFW_LOCK_KEY_MODS.
*
* @param[in] window The window to query.
* @param[in] mode One of `GLFW_CURSOR`, `GLFW_STICKY_KEYS` or
* `GLFW_STICKY_MOUSE_BUTTONS`.
* @param[in] mode One of `GLFW_CURSOR`, `GLFW_STICKY_KEYS`,
* `GLFW_STICKY_MOUSE_BUTTONS` or `GLFW_LOCK_KEY_MODS`.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_INVALID_ENUM.
@ -3680,8 +3701,8 @@ GLFWAPI int glfwGetInputMode(GLFWwindow* window, int mode);
/*! @brief Sets an input option for the specified window.
*
* This function sets an input mode option for the specified window. The mode
* must be one of @ref GLFW_CURSOR, @ref GLFW_STICKY_KEYS or
* @ref GLFW_STICKY_MOUSE_BUTTONS.
* must be one of @ref GLFW_CURSOR, @ref GLFW_STICKY_KEYS,
* @ref GLFW_STICKY_MOUSE_BUTTONS or @ref GLFW_LOCK_KEY_MODS.
*
* If the mode is `GLFW_CURSOR`, the value must be one of the following cursor
* modes:
@ -3707,9 +3728,15 @@ GLFWAPI int glfwGetInputMode(GLFWwindow* window, int mode);
* you are only interested in whether mouse buttons have been pressed but not
* when or in which order.
*
* If the mode is `GLFW_LOCK_KEY_MODS`, the value must be either `GLFW_TRUE` to
* enable lock key modifier bits, or `GLFW_FALSE` to disable them. If enabled,
* callbacks that receive modifier bits will also have the @ref
* GLFW_MOD_CAPS_LOCK bit set when the event was generated with Caps Lock on,
* and the @ref GLFW_MOD_NUM_LOCK bit when Num Lock was on.
*
* @param[in] window The window whose input mode to set.
* @param[in] mode One of `GLFW_CURSOR`, `GLFW_STICKY_KEYS` or
* `GLFW_STICKY_MOUSE_BUTTONS`.
* @param[in] mode One of `GLFW_CURSOR`, `GLFW_STICKY_KEYS`,
* `GLFW_STICKY_MOUSE_BUTTONS` or `GLFW_LOCK_KEY_MODS`.
* @param[in] value The new value of the specified input mode.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref

3
src/cocoa_window.m
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@ -43,6 +43,7 @@
#define NSEventModifierFlagControl NSControlKeyMask
#define NSEventModifierFlagOption NSAlternateKeyMask
#define NSEventModifierFlagShift NSShiftKeyMask
#define NSEventModifierFlagCapsLock NSAlphaShiftKeyMask
#define NSEventModifierFlagDeviceIndependentFlagsMask NSDeviceIndependentModifierFlagsMask
#define NSEventMaskAny NSAnyEventMask
#define NSEventTypeApplicationDefined NSApplicationDefined
@ -177,6 +178,8 @@ static int translateFlags(NSUInteger flags)
mods |= GLFW_MOD_ALT;
if (flags & NSEventModifierFlagCommand)
mods |= GLFW_MOD_SUPER;
if (flags & NSEventModifierFlagCapsLock)
mods |= GLFW_MOD_CAPS_LOCK;
return mods;
}

17
src/input.c
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@ -245,6 +245,9 @@ void _glfwInputKey(_GLFWwindow* window, int key, int scancode, int action, int m
action = GLFW_REPEAT;
}
if (!window->lockKeyMods)
mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK);
if (window->callbacks.key)
window->callbacks.key((GLFWwindow*) window, key, scancode, action, mods);
}
@ -254,6 +257,9 @@ void _glfwInputChar(_GLFWwindow* window, unsigned int codepoint, int mods, GLFWb
if (codepoint < 32 || (codepoint > 126 && codepoint < 160))
return;
if (!window->lockKeyMods)
mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK);
if (window->callbacks.charmods)
window->callbacks.charmods((GLFWwindow*) window, codepoint, mods);
@ -275,6 +281,9 @@ void _glfwInputMouseClick(_GLFWwindow* window, int button, int action, int mods)
if (button < 0 || button > GLFW_MOUSE_BUTTON_LAST)
return;
if (!window->lockKeyMods)
mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK);
if (action == GLFW_RELEASE && window->stickyMouseButtons)
window->mouseButtons[button] = _GLFW_STICK;
else
@ -406,6 +415,8 @@ GLFWAPI int glfwGetInputMode(GLFWwindow* handle, int mode)
return window->stickyKeys;
case GLFW_STICKY_MOUSE_BUTTONS:
return window->stickyMouseButtons;
case GLFW_LOCK_KEY_MODS:
return window->lockKeyMods;
}
_glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode 0x%08X", mode);
@ -461,7 +472,7 @@ GLFWAPI void glfwSetInputMode(GLFWwindow* handle, int mode, int value)
}
}
window->stickyKeys = value ? GLFW_TRUE : GLFW_FALSE;
window->stickyKeys = value;
}
else if (mode == GLFW_STICKY_MOUSE_BUTTONS)
{
@ -481,8 +492,10 @@ GLFWAPI void glfwSetInputMode(GLFWwindow* handle, int mode, int value)
}
}
window->stickyMouseButtons = value ? GLFW_TRUE : GLFW_FALSE;
window->stickyMouseButtons = value;
}
else if (mode == GLFW_LOCK_KEY_MODS)
window->lockKeyMods = value ? GLFW_TRUE : GLFW_FALSE;
else
_glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode 0x%08X", mode);
}

1
src/internal.h
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@ -419,6 +419,7 @@ struct _GLFWwindow
GLFWbool stickyKeys;
GLFWbool stickyMouseButtons;
GLFWbool lockKeyMods;
int cursorMode;
char mouseButtons[GLFW_MOUSE_BUTTON_LAST + 1];
char keys[GLFW_KEY_LAST + 1];

4
src/mir_window.c
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@ -123,6 +123,10 @@ static int mirModToGLFWMod(uint32_t mods)
publicMods |= GLFW_MOD_CONTROL;
if (mods & mir_input_event_modifier_meta)
publicMods |= GLFW_MOD_SUPER;
if (mods & mir_input_event_modifier_caps_lock)
publicMods |= GLFW_MOD_CAPS_LOCK;
if (mods & mir_input_event_modifier_num_lock)
publicMods |= GLFW_MOD_NUM_LOCK;
return publicMods;
}

8
src/win32_window.c
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@ -392,6 +392,10 @@ static int getKeyMods(void)
mods |= GLFW_MOD_ALT;
if ((GetKeyState(VK_LWIN) | GetKeyState(VK_RWIN)) & 0x8000)
mods |= GLFW_MOD_SUPER;
if (GetKeyState(VK_CAPITAL) & 1)
mods |= GLFW_MOD_CAPS_LOCK;
if (GetKeyState(VK_NUMLOCK) & 1)
mods |= GLFW_MOD_NUM_LOCK;
return mods;
}
@ -410,6 +414,10 @@ static int getAsyncKeyMods(void)
mods |= GLFW_MOD_ALT;
if ((GetAsyncKeyState(VK_LWIN) | GetAsyncKeyState(VK_RWIN)) & 0x8000)
mods |= GLFW_MOD_SUPER;
if (GetAsyncKeyState(VK_CAPITAL) & 1)
mods |= GLFW_MOD_CAPS_LOCK;
if (GetAsyncKeyState(VK_NUMLOCK) & 1)
mods |= GLFW_MOD_NUM_LOCK;
return mods;
}

8
src/wl_init.c
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@ -264,6 +264,10 @@ static void keyboardHandleKeymap(void* data,
1 << xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Shift");
_glfw.wl.xkb.superMask =
1 << xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Mod4");
_glfw.wl.xkb.capsLockMask =
1 << xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Lock");
_glfw.wl.xkb.numLockMask =
1 << xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Mod2");
}
static void keyboardHandleEnter(void* data,
@ -409,6 +413,10 @@ static void keyboardHandleModifiers(void* data,
modifiers |= GLFW_MOD_SHIFT;
if (mask & _glfw.wl.xkb.superMask)
modifiers |= GLFW_MOD_SUPER;
if (mask & _glfw.wl.xkb.capsLockMask)
modifiers |= GLFW_MOD_CAPS_LOCK;
if (mask & _glfw.wl.xkb.numLockMask)
modifiers |= GLFW_MOD_NUM_LOCK;
_glfw.wl.xkb.modifiers = modifiers;
}

2
src/wl_platform.h
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@ -183,6 +183,8 @@ typedef struct _GLFWlibraryWayland
xkb_mod_mask_t altMask;
xkb_mod_mask_t shiftMask;
xkb_mod_mask_t superMask;
xkb_mod_mask_t capsLockMask;
xkb_mod_mask_t numLockMask;
unsigned int modifiers;
PFN_xkb_context_new context_new;

4
src/x11_window.c
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@ -212,6 +212,10 @@ static int translateState(int state)
mods |= GLFW_MOD_ALT;
if (state & Mod4Mask)
mods |= GLFW_MOD_SUPER;
if (state & LockMask)
mods |= GLFW_MOD_CAPS_LOCK;
if (state & Mod2Mask)
mods |= GLFW_MOD_NUM_LOCK;
return mods;
}

13
tests/events.c
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@ -244,6 +244,10 @@ static const char* get_mods_name(int mods)
strcat(name, " alt");
if (mods & GLFW_MOD_SUPER)
strcat(name, " super");
if (mods & GLFW_MOD_CAPS_LOCK)
strcat(name, " capslock-on");
if (mods & GLFW_MOD_NUM_LOCK)
strcat(name, " numlock-on");
return name;
}
@ -400,6 +404,15 @@ static void key_callback(GLFWwindow* window, int key, int scancode, int action,
printf("(( closing %s ))\n", slot->closeable ? "enabled" : "disabled");
break;
}
case GLFW_KEY_L:
{
const int state = glfwGetInputMode(window, GLFW_LOCK_KEY_MODS);
glfwSetInputMode(window, GLFW_LOCK_KEY_MODS, !state);
printf("(( lock key mods %s ))\n", !state ? "enabled" : "disabled");
break;
}
}
}