diff options
Diffstat (limited to 'gdk/mir/gdkmireventsource.c')
| -rw-r--r-- | gdk/mir/gdkmireventsource.c | 793 |
1 files changed, 793 insertions, 0 deletions
diff --git a/gdk/mir/gdkmireventsource.c b/gdk/mir/gdkmireventsource.c new file mode 100644 index 0000000000..f7908fc146 --- /dev/null +++ b/gdk/mir/gdkmireventsource.c @@ -0,0 +1,793 @@ +/* + * Copyright © 2014 Canonical Ltd + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include "gdkinternals.h" +#include "gdkdisplayprivate.h" +#include "gdkmir.h" +#include "gdkmir-private.h" + +struct _GdkMirWindowReference { + GdkMirEventSource *source; + GdkWindow *window; + gint ref_count; +}; + +typedef struct { + GdkMirWindowReference *window_ref; + MirEvent event; +} GdkMirQueuedEvent; + +struct _GdkMirEventSource +{ + GSource parent_instance; + + GMutex mir_event_lock; + GQueue mir_events; + + GdkDisplay *display; +}; + +static void +print_modifiers (unsigned int modifiers) +{ + g_printerr (" Modifiers"); + if ((modifiers & mir_key_modifier_alt) != 0) + g_printerr (" alt"); + if ((modifiers & mir_key_modifier_alt_left) != 0) + g_printerr (" alt-left"); + if ((modifiers & mir_key_modifier_alt_right) != 0) + g_printerr (" alt-right"); + if ((modifiers & mir_key_modifier_shift) != 0) + g_printerr (" shift"); + if ((modifiers & mir_key_modifier_shift_left) != 0) + g_printerr (" shift-left"); + if ((modifiers & mir_key_modifier_shift_right) != 0) + g_printerr (" shift-right"); + if ((modifiers & mir_key_modifier_sym) != 0) + g_printerr (" sym"); + if ((modifiers & mir_key_modifier_function) != 0) + g_printerr (" function"); + if ((modifiers & mir_key_modifier_ctrl) != 0) + g_printerr (" ctrl"); + if ((modifiers & mir_key_modifier_ctrl_left) != 0) + g_printerr (" ctrl-left"); + if ((modifiers & mir_key_modifier_ctrl_right) != 0) + g_printerr (" ctrl-right"); + if ((modifiers & mir_key_modifier_meta) != 0) + g_printerr (" meta"); + if ((modifiers & mir_key_modifier_meta_left) != 0) + g_printerr (" meta-left"); + if ((modifiers & mir_key_modifier_meta_right) != 0) + g_printerr (" meta-right"); + if ((modifiers & mir_key_modifier_caps_lock) != 0) + g_printerr (" caps-lock"); + if ((modifiers & mir_key_modifier_num_lock) != 0) + g_printerr (" num-lock"); + if ((modifiers & mir_key_modifier_scroll_lock) != 0) + g_printerr (" scroll-lock"); + g_printerr ("\n"); +} + +static void +print_key_event (const MirKeyEvent *event) +{ + g_printerr ("KEY\n"); + g_printerr (" Device %i\n", event->device_id); + g_printerr (" Source %i\n", event->source_id); + g_printerr (" Action "); + switch (event->action) + { + case mir_key_action_down: + g_printerr ("down"); + break; + case mir_key_action_up: + g_printerr ("up"); + break; + case mir_key_action_multiple: + g_printerr ("multiple"); + break; + default: + g_printerr ("%u", event->action); + break; + } + g_printerr ("\n"); + g_printerr (" Flags"); + if ((event->flags & mir_key_flag_woke_here) != 0) + g_printerr (" woke-here"); + if ((event->flags & mir_key_flag_soft_keyboard) != 0) + g_printerr (" soft-keyboard"); + if ((event->flags & mir_key_flag_keep_touch_mode) != 0) + g_printerr (" keep-touch-mode"); + if ((event->flags & mir_key_flag_from_system) != 0) + g_printerr (" from-system"); + if ((event->flags & mir_key_flag_editor_action) != 0) + g_printerr (" editor-action"); + if ((event->flags & mir_key_flag_canceled) != 0) + g_printerr (" canceled"); + if ((event->flags & mir_key_flag_virtual_hard_key) != 0) + g_printerr (" virtual-hard-key"); + if ((event->flags & mir_key_flag_long_press) != 0) + g_printerr (" long-press"); + if ((event->flags & mir_key_flag_canceled_long_press) != 0) + g_printerr (" canceled-long-press"); + if ((event->flags & mir_key_flag_tracking) != 0) + g_printerr (" tracking"); + if ((event->flags & mir_key_flag_fallback) != 0) + g_printerr (" fallback"); + g_printerr ("\n"); + print_modifiers (event->modifiers); + g_printerr (" Key Code %i\n", event->key_code); + g_printerr (" Scan Code %i\n", event->scan_code); + g_printerr (" Repeat Count %i\n", event->repeat_count); + g_printerr (" Down Time %lli\n", (long long int) event->down_time); + g_printerr (" Event Time %lli\n", (long long int) event->event_time); + g_printerr (" Is System Key %s\n", event->is_system_key ? "true" : "false"); +} + +static void +print_motion_event (const MirMotionEvent *event) +{ + size_t i; + + g_printerr ("MOTION\n"); + g_printerr (" Device %i\n", event->device_id); + g_printerr (" Source %i\n", event->source_id); + g_printerr (" Action "); + switch (event->action) + { + case mir_motion_action_down: + g_printerr ("down"); + break; + case mir_motion_action_up: + g_printerr ("up"); + break; + case mir_motion_action_move: + g_printerr ("move"); + break; + case mir_motion_action_cancel: + g_printerr ("cancel"); + break; + case mir_motion_action_outside: + g_printerr ("outside"); + break; + case mir_motion_action_pointer_down: + g_printerr ("pointer-down"); + break; + case mir_motion_action_pointer_up: + g_printerr ("pointer-up"); + break; + case mir_motion_action_hover_move: + g_printerr ("hover-move"); + break; + case mir_motion_action_scroll: + g_printerr ("scroll"); + break; + case mir_motion_action_hover_enter: + g_printerr ("hover-enter"); + break; + case mir_motion_action_hover_exit: + g_printerr ("hover-exit"); + break; + default: + g_printerr ("%u", event->action); + } + g_printerr ("\n"); + g_printerr (" Flags"); + switch (event->flags) + { + case mir_motion_flag_window_is_obscured: + g_printerr (" window-is-obscured"); + break; + } + g_printerr ("\n"); + print_modifiers (event->modifiers); + g_printerr (" Edge Flags %i\n", event->edge_flags); + g_printerr (" Button State"); + switch (event->button_state) + { + case mir_motion_button_primary: + g_printerr (" primary"); + break; + case mir_motion_button_secondary: + g_printerr (" secondary"); + break; + case mir_motion_button_tertiary: + g_printerr (" tertiary"); + break; + case mir_motion_button_back: + g_printerr (" back"); + break; + case mir_motion_button_forward: + g_printerr (" forward"); + break; + } + g_printerr ("\n"); + g_printerr (" Offset (%f, %f)\n", event->x_offset, event->y_offset); + g_printerr (" Precision (%f, %f)\n", event->x_precision, event->y_precision); + g_printerr (" Down Time %lli\n", (long long int) event->down_time); + g_printerr (" Event Time %lli\n", (long long int) event->event_time); + g_printerr (" Pointer Coordinates\n"); + for (i = 0; i < event->pointer_count; i++) + { + g_printerr (" ID=%i location=(%f, %f) raw=(%f, %f) touch=(%f, %f) size=%f pressure=%f orientation=%f scroll=(%f, %f) tool=", + event->pointer_coordinates[i].id, + event->pointer_coordinates[i].x, event->pointer_coordinates[i].y, + event->pointer_coordinates[i].raw_x, event->pointer_coordinates[i].raw_y, + event->pointer_coordinates[i].touch_major, event->pointer_coordinates[i].touch_minor, + event->pointer_coordinates[i].size, + event->pointer_coordinates[i].pressure, + event->pointer_coordinates[i].orientation, + event->pointer_coordinates[i].hscroll, event->pointer_coordinates[i].vscroll); + switch (event->pointer_coordinates[i].tool_type) + { + case mir_motion_tool_type_unknown: + g_printerr ("unknown"); + break; + case mir_motion_tool_type_finger: + g_printerr ("finger"); + break; + case mir_motion_tool_type_stylus: + g_printerr ("stylus"); + break; + case mir_motion_tool_type_mouse: + g_printerr ("mouse"); + break; + case mir_motion_tool_type_eraser: + g_printerr ("eraser"); + break; + default: + g_printerr ("%u", event->pointer_coordinates[i].tool_type); + break; + } + g_printerr ("\n"); + } +} + +static void +print_surface_event (const MirSurfaceEvent *event) +{ + g_printerr ("SURFACE\n"); + g_printerr (" Surface %i\n", event->id); + g_printerr (" Attribute "); + switch (event->attrib) + { + case mir_surface_attrib_type: + g_printerr ("type"); + break; + case mir_surface_attrib_state: + g_printerr ("state"); + break; + case mir_surface_attrib_swapinterval: + g_printerr ("swapinterval"); + break; + case mir_surface_attrib_focus: + g_printerr ("focus"); + break; + default: + g_printerr ("%u", event->attrib); + break; + } + g_printerr ("\n"); + g_printerr (" Value %i\n", event->value); +} + +static void +print_resize_event (const MirResizeEvent *event) +{ + g_printerr ("RESIZE\n"); + g_printerr (" Surface %i\n", event->surface_id); + g_printerr (" Size (%i, %i)\n", event->width, event->height); +} + +static void +print_event (const MirEvent *event) +{ + switch (event->type) + { + case mir_event_type_key: + print_key_event (&event->key); + break; + case mir_event_type_motion: + print_motion_event (&event->motion); + break; + case mir_event_type_surface: + print_surface_event (&event->surface); + break; + case mir_event_type_resize: + print_resize_event (&event->resize); + break; + default: + g_printerr ("EVENT %u\n", event->type); + break; + } +} + +static void +send_event (GdkWindow *window, GdkDevice *device, GdkEvent *event) +{ + GdkDisplay *display; + GList *node; + + gdk_event_set_device (event, device); + gdk_event_set_screen (event, gdk_display_get_screen (gdk_window_get_display (window), 0)); + event->any.window = g_object_ref (window); + + display = gdk_window_get_display (window); + node = _gdk_event_queue_append (display, event); + _gdk_windowing_got_event (display, node, event, _gdk_display_get_next_serial (display)); +} + +static void +generate_key_event (GdkWindow *window, GdkEventType type, guint state, guint keyval, guint16 keycode, gboolean is_modifier) +{ + GdkEvent *event; + + event = gdk_event_new (type); + event->key.state = state; + event->key.keyval = keyval; + event->key.length = 0; + event->key.string = NULL; // FIXME: Is this still needed? + event->key.hardware_keycode = keycode; + event->key.group = 0; // FIXME + event->key.is_modifier = is_modifier; + + send_event (window, _gdk_mir_device_manager_get_keyboard (gdk_display_get_device_manager (gdk_window_get_display (window))), event); +} + +static GdkDevice * +get_pointer (GdkWindow *window) +{ + return gdk_device_manager_get_client_pointer (gdk_display_get_device_manager (gdk_window_get_display (window))); +} + +static void +generate_button_event (GdkWindow *window, GdkEventType type, gdouble x, gdouble y, guint button, guint state) +{ + GdkEvent *event; + + event = gdk_event_new (type); + event->button.x = x; + event->button.y = y; + event->button.state = state; + event->button.button = button; + + send_event (window, get_pointer (window), event); +} + +static void +generate_scroll_event (GdkWindow *window, gdouble x, gdouble y, gdouble delta_x, gdouble delta_y, guint state) +{ + GdkEvent *event; + + event = gdk_event_new (GDK_SCROLL); + event->scroll.x = x; + event->scroll.y = y; + event->scroll.state = state; + event->scroll.direction = GDK_SCROLL_SMOOTH; + event->scroll.delta_x = delta_x; + event->scroll.delta_y = delta_y; + + send_event (window, get_pointer (window), event); +} + +static void +generate_motion_event (GdkWindow *window, gdouble x, gdouble y, guint state) +{ + GdkEvent *event; + + event = gdk_event_new (GDK_MOTION_NOTIFY); + event->motion.x = x; + event->motion.y = y; + event->motion.state = state; + event->motion.is_hint = FALSE; + + send_event (window, get_pointer (window), event); +} + +static void +generate_crossing_event (GdkWindow *window, GdkEventType type, gdouble x, gdouble y) +{ + GdkEvent *event; + + event = gdk_event_new (type); + event->crossing.x = x; + event->crossing.y = y; + event->crossing.mode = GDK_CROSSING_NORMAL; + event->crossing.detail = GDK_NOTIFY_ANCESTOR; + event->crossing.focus = TRUE; + + send_event (window, get_pointer (window), event); +} + +static guint +get_modifier_state (unsigned int modifiers, unsigned int button_state) +{ + guint modifier_state = 0; + + if ((modifiers & mir_key_modifier_alt) != 0) + modifier_state |= GDK_MOD1_MASK; + if ((modifiers & mir_key_modifier_shift) != 0) + modifier_state |= GDK_SHIFT_MASK; + if ((modifiers & mir_key_modifier_ctrl) != 0) + modifier_state |= GDK_CONTROL_MASK; + if ((modifiers & mir_key_modifier_meta) != 0) + modifier_state |= GDK_SUPER_MASK; + if ((modifiers & mir_key_modifier_caps_lock) != 0) + modifier_state |= GDK_LOCK_MASK; + if ((button_state & mir_motion_button_primary) != 0) + modifier_state |= GDK_BUTTON1_MASK; + if ((button_state & mir_motion_button_secondary) != 0) + modifier_state |= GDK_BUTTON3_MASK; + if ((button_state & mir_motion_button_tertiary) != 0) + modifier_state |= GDK_BUTTON2_MASK; + + return modifier_state; +} + +/* + GdkMirWindowImpl *impl = GDK_MIR_WINDOW_IMPL (event_data->window->impl); + MirMotionButton changed_button_state; + GdkEventType event_type; + gdouble x, y; + guint modifier_state; + gboolean is_modifier = FALSE; +*/ + +static void +handle_key_event (GdkWindow *window, const MirKeyEvent *event) +{ + guint modifier_state; + gboolean is_modifier = FALSE; + + modifier_state = get_modifier_state (event->modifiers, 0); // FIXME: Need to track button state + + switch (event->action) + { + case mir_key_action_down: + case mir_key_action_up: + // FIXME: Convert keycode + // FIXME: is_modifier + generate_key_event (window, + event->action == mir_key_action_down ? GDK_KEY_PRESS : GDK_KEY_RELEASE, + modifier_state, + event->key_code, + event->scan_code, + is_modifier); + break; + default: + //case mir_key_action_multiple: + // FIXME + break; + } +} + +static void +handle_motion_event (GdkWindow *window, const MirMotionEvent *event) +{ + GdkMirWindowImpl *impl = GDK_MIR_WINDOW_IMPL (window->impl); + guint modifier_state; + GdkEventType event_type; + MirMotionButton changed_button_state; + + if (event->pointer_count > 0) + { + impl->x = event->pointer_coordinates[0].x; + impl->y = event->pointer_coordinates[0].y; + } + modifier_state = get_modifier_state (event->modifiers, event->button_state); + + /* The Mir events generate hover-exits even while inside the window so + counteract this by always generating an enter notify on all other events */ + if (!impl->cursor_inside && event->action != mir_motion_action_hover_exit) + { + impl->cursor_inside = TRUE; + generate_crossing_event (window, GDK_ENTER_NOTIFY, impl->x, impl->y); + } + + /* Update which window has focus */ + _gdk_mir_pointer_set_location (get_pointer (window), impl->x, impl->y, window, modifier_state); + switch (event->action) + { + case mir_motion_action_down: + case mir_motion_action_up: + event_type = event->action == mir_motion_action_down ? GDK_BUTTON_PRESS : GDK_BUTTON_RELEASE; + changed_button_state = impl->button_state ^ event->button_state; + if ((changed_button_state & mir_motion_button_primary) != 0) + generate_button_event (window, event_type, impl->x, impl->y, GDK_BUTTON_PRIMARY, modifier_state); + if ((changed_button_state & mir_motion_button_secondary) != 0) + generate_button_event (window, event_type, impl->x, impl->y, GDK_BUTTON_SECONDARY, modifier_state); + if ((changed_button_state & mir_motion_button_tertiary) != 0) + generate_button_event (window, event_type, impl->x, impl->y, GDK_BUTTON_MIDDLE, modifier_state); + impl->button_state = event->button_state; + break; + case mir_motion_action_scroll: + generate_scroll_event (window, impl->x, impl->y, event->pointer_coordinates[0].hscroll, event->pointer_coordinates[0].vscroll, modifier_state); + break; + case mir_motion_action_move: // move with button + case mir_motion_action_hover_move: // move without button + generate_motion_event (window, impl->x, impl->y, modifier_state); + break; + case mir_motion_action_hover_exit: + impl->cursor_inside = FALSE; + generate_crossing_event (window, GDK_LEAVE_NOTIFY, impl->x, impl->y); + break; + } +} + +static void +handle_surface_event (GdkWindow *window, const MirSurfaceEvent *event) +{ + GdkMirWindowImpl *impl = GDK_MIR_WINDOW_IMPL (window->impl); + + switch (event->attrib) + { + case mir_surface_attrib_type: + break; + case mir_surface_attrib_state: + impl->surface_state = event->value; + // FIXME: notify + break; + case mir_surface_attrib_swapinterval: + break; + case mir_surface_attrib_focus: + if (event->value) + gdk_synthesize_window_state (window, 0, GDK_WINDOW_STATE_FOCUSED); + else + gdk_synthesize_window_state (window, GDK_WINDOW_STATE_FOCUSED, 0); + break; + default: + break; + } +} + +typedef struct +{ + GdkWindow *window; + MirEvent event; +} EventData; + +static void +gdk_mir_event_source_queue_event (GdkDisplay *display, + GdkWindow *window, + const MirEvent *event) +{ + if (g_getenv ("GDK_MIR_LOG_EVENTS")) + print_event (event); + + // FIXME: Only generate events if the window wanted them? + switch (event->type) + { + case mir_event_type_key: + handle_key_event (window, &event->key); + break; + case mir_event_type_motion: + handle_motion_event (window, &event->motion); + break; + case mir_event_type_surface: + handle_surface_event (window, &event->surface); + break; + case mir_event_type_resize: + // FIXME: Generate configure event + break; + default: + // FIXME? + break; + } +} + +static GdkMirQueuedEvent * +gdk_mir_event_source_take_queued_event (GdkMirEventSource *source) +{ + GdkMirQueuedEvent *queued_event; + + g_mutex_lock (&source->mir_event_lock); + queued_event = g_queue_pop_head (&source->mir_events); + g_mutex_unlock (&source->mir_event_lock); + + return queued_event; +} + +static void +gdk_mir_queued_event_free (GdkMirQueuedEvent *event) +{ + _gdk_mir_window_reference_unref (event->window_ref); + g_slice_free (GdkMirQueuedEvent, event); +} + +static void +gdk_mir_event_source_convert_events (GdkMirEventSource *source) +{ + GdkMirQueuedEvent *event; + + while ((event = gdk_mir_event_source_take_queued_event (source))) + { + GdkWindow *window = event->window_ref->window; + + /* The window may have been destroyed in the main thread while the + * event was being dispatched... + */ + if (window != NULL) + gdk_mir_event_source_queue_event (source->display, window, &event->event); + + gdk_mir_queued_event_free (event); + } +} + +static gboolean +gdk_mir_event_source_prepare (GSource *g_source, + gint *timeout) +{ + GdkMirEventSource *source = (GdkMirEventSource *) g_source; + gboolean mir_events_in_queue; + + if (_gdk_event_queue_find_first (source->display)) + return TRUE; + + g_mutex_lock (&source->mir_event_lock); + mir_events_in_queue = g_queue_get_length (&source->mir_events) > 0; + g_mutex_unlock (&source->mir_event_lock); + + return mir_events_in_queue; +} + +static gboolean +gdk_mir_event_source_check (GSource *g_source) +{ + return gdk_mir_event_source_prepare (g_source, NULL); +} + +static gboolean +gdk_mir_event_source_dispatch (GSource *g_source, + GSourceFunc callback, + gpointer user_data) +{ + GdkMirEventSource *source = (GdkMirEventSource *) g_source; + GdkEvent *event; + + /* First, run the queue of events from the thread */ + gdk_mir_event_source_convert_events (source); + + /* Next, dispatch one single event from the display's queue. + * + * If there is more than one event then we will soon find ourselves + * back here again. + */ + + gdk_threads_enter (); + + event = gdk_display_get_event (source->display); + + if (event) + { + _gdk_event_emit (event); + + gdk_event_free (event); + } + + gdk_threads_leave (); + + return TRUE; +} + +static void +gdk_mir_event_source_finalize (GSource *g_source) +{ + GdkMirEventSource *source = (GdkMirEventSource *) g_source; + GdkMirQueuedEvent *event; + + while ((event = gdk_mir_event_source_take_queued_event (source))) + gdk_mir_queued_event_free (event); + + g_mutex_clear (&source->mir_event_lock); +} + +static GSourceFuncs gdk_mir_event_source_funcs = { + gdk_mir_event_source_prepare, + gdk_mir_event_source_check, + gdk_mir_event_source_dispatch, + gdk_mir_event_source_finalize +}; + +GdkMirEventSource * +_gdk_mir_event_source_new (GdkDisplay *display) +{ + GdkMirEventSource *source; + GSource *g_source; + + g_source = g_source_new (&gdk_mir_event_source_funcs, sizeof (GdkMirEventSource)); + g_source_attach (g_source, NULL); + + source = (GdkMirEventSource *) g_source; + g_mutex_init (&source->mir_event_lock); + source->display = display; + + return source; +} + +GdkMirWindowReference * +_gdk_mir_event_source_get_window_reference (GdkWindow *window) +{ + static GQuark win_ref_quark; + GdkMirWindowReference *ref; + + if G_UNLIKELY (!win_ref_quark) + win_ref_quark = g_quark_from_string ("GdkMirEventSource window reference"); + + ref = g_object_get_qdata (G_OBJECT (window), win_ref_quark); + + if (!ref) + { + GdkMirEventSource *source; + + source = _gdk_mir_display_get_event_source (gdk_window_get_display (window)); + g_source_ref ((GSource *) source); + + ref = g_slice_new (GdkMirWindowReference); + ref->window = window; + ref->source = source; + ref->ref_count = 0; + g_object_add_weak_pointer (G_OBJECT (window), (gpointer *) &ref->window); + + g_object_set_qdata_full (G_OBJECT (window), win_ref_quark, + ref, (GDestroyNotify) _gdk_mir_window_reference_unref); + } + + g_atomic_int_inc (&ref->ref_count); + + return ref; +} + +void +_gdk_mir_window_reference_unref (GdkMirWindowReference *ref) +{ + if (g_atomic_int_dec_and_test (&ref->ref_count)) + { + if (ref->window) + g_object_remove_weak_pointer (G_OBJECT (ref->window), (gpointer *) &ref->window); + + g_source_unref ((GSource *) ref->source); + + g_slice_free (GdkMirWindowReference, ref); + } +} + +void +_gdk_mir_event_source_queue (GdkMirWindowReference *window_ref, + const MirEvent *event) +{ + GdkMirEventSource *source = window_ref->source; + GdkMirQueuedEvent *queued_event; + + /* We are in the wrong thread right now. We absolutely cannot touch + * the window. + * + * We can do pretty much anything we want with the source, though... + */ + + queued_event = g_slice_new (GdkMirQueuedEvent); + g_atomic_int_inc (&window_ref->ref_count); + queued_event->window_ref = window_ref; + queued_event->event = *event; + + g_mutex_lock (&source->mir_event_lock); + g_queue_push_tail (&source->mir_events, queued_event); + g_mutex_unlock (&source->mir_event_lock); + + g_main_context_wakeup (NULL); +} |