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text: Fix text-input for multi-seat

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Multi-seat configurations currently break the text-backend, crashing
weston.  This is an attempt to clean up any crashes and have somewhat
sensible input panel behavior with multi-seat.

Store a link to the manager that created a text_input, use this to
ensure that only a single panel gets popped up at a time, since there
is only one manager.

Replace deactivate_text_input with deactivate_input_method: multiple
input methods may focus the same text_input, so deactivating a text_input
is weird in multi-seat and confusing to perform.

In destroy_input_method_context set the context's input_method's context
pointer to NULL to prevent a dangling pointer.

Reviewed-by: Jan Arne Petersen <janarne@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
dev
Derek Foreman 10 years ago committed by Bryce Harrington
parent 84787ea45f
commit 516d603515
1 changed files with 48 additions and 28 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 76
      src/text-backend.c

76
src/text-backend.c
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@ -33,6 +33,7 @@
#include "text-server-protocol.h"
#include "input-method-server-protocol.h"
struct text_input_manager;
struct input_method;
struct input_method_context;
struct text_backend;
@ -49,12 +50,16 @@ struct text_input {
pixman_box32_t cursor_rectangle;
bool input_panel_visible;
struct text_input_manager *manager;
};
struct text_input_manager {
struct wl_global *text_input_manager_global;
struct wl_listener destroy_listener;
struct text_input *current_panel;
struct weston_compositor *ec;
};
@ -113,25 +118,28 @@ static void
input_method_init_seat(struct weston_seat *seat);
static void
deactivate_text_input(struct text_input *text_input,
struct input_method *input_method)
deactivate_input_method(struct input_method *input_method)
{
struct text_input *text_input = input_method->model;
struct weston_compositor *ec = text_input->ec;
if (input_method->model == text_input) {
if (input_method->context && input_method->input_method_binding) {
input_method_context_end_keyboard_grab(input_method->context);
wl_input_method_send_deactivate(input_method->input_method_binding,
input_method->context->resource);
input_method->context->model = NULL;
}
wl_list_remove(&input_method->link);
input_method->model = NULL;
input_method->context = NULL;
if (input_method->context && input_method->input_method_binding) {
input_method_context_end_keyboard_grab(input_method->context);
wl_input_method_send_deactivate(input_method->input_method_binding,
input_method->context->resource);
}
wl_list_remove(&input_method->link);
input_method->model = NULL;
input_method->context = NULL;
if (wl_list_empty(&text_input->input_methods) &&
text_input->input_panel_visible) {
wl_signal_emit(&ec->hide_input_panel_signal, ec);
wl_text_input_send_leave(text_input->resource);
text_input->input_panel_visible = false;
text_input->manager->current_panel = NULL;
}
wl_text_input_send_leave(text_input->resource);
}
static void
@ -141,7 +149,7 @@ destroy_text_input(struct wl_resource *resource)
struct input_method *input_method, *next;
wl_list_for_each_safe(input_method, next, &text_input->input_methods, link)
deactivate_text_input(text_input, input_method);
deactivate_input_method(input_method);
free(text_input);
}
@ -175,16 +183,14 @@ text_input_activate(struct wl_client *client,
struct text_input *text_input = wl_resource_get_user_data(resource);
struct weston_seat *weston_seat = wl_resource_get_user_data(seat);
struct input_method *input_method = weston_seat->input_method;
struct text_input *old = weston_seat->input_method->model;
struct weston_compositor *ec = text_input->ec;
struct text_input *current;
if (old == text_input)
if (input_method->model == text_input)
return;
if (old) {
deactivate_text_input(old,
weston_seat->input_method);
}
if (input_method->model)
deactivate_input_method(input_method);
input_method->model = text_input;
wl_list_insert(&text_input->input_methods, &input_method->link);
@ -194,9 +200,18 @@ text_input_activate(struct wl_client *client,
input_method_context_create(text_input, input_method);
current = text_input->manager->current_panel;
if (current && current != text_input) {
current->input_panel_visible = false;
wl_signal_emit(&ec->hide_input_panel_signal, ec);
text_input->manager->current_panel = NULL;
}
if (text_input->input_panel_visible) {
wl_signal_emit(&ec->show_input_panel_signal, text_input->surface);
wl_signal_emit(&ec->update_input_panel_signal, &text_input->cursor_rectangle);
text_input->manager->current_panel = text_input;
}
wl_text_input_send_enter(text_input->resource, text_input->surface->resource);
@ -207,11 +222,10 @@ text_input_deactivate(struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *seat)
{
struct text_input *text_input = wl_resource_get_user_data(resource);
struct weston_seat *weston_seat = wl_resource_get_user_data(seat);
deactivate_text_input(text_input,
weston_seat->input_method);
if (weston_seat->input_method->model)
deactivate_input_method(weston_seat->input_method);
}
static void
@ -318,8 +332,11 @@ text_input_hide_input_panel(struct wl_client *client,
text_input->input_panel_visible = false;
if (!wl_list_empty(&text_input->input_methods))
if (!wl_list_empty(&text_input->input_methods) &&
text_input == text_input->manager->current_panel) {
text_input->manager->current_panel = NULL;
wl_signal_emit(&ec->hide_input_panel_signal, ec);
}
}
static void
@ -370,6 +387,7 @@ static void text_input_manager_create_text_input(struct wl_client *client,
text_input, destroy_text_input);
text_input->ec = text_input_manager->ec;
text_input->manager = text_input_manager;
wl_list_init(&text_input->input_methods);
};
@ -719,6 +737,9 @@ destroy_input_method_context(struct wl_resource *resource)
wl_resource_destroy(context->keyboard);
}
if (context->input_method && context->input_method->context == context)
context->input_method->context = NULL;
free(context);
}
@ -823,7 +844,7 @@ input_method_notifier_destroy(struct wl_listener *listener, void *data)
container_of(listener, struct input_method, destroy_listener);
if (input_method->model)
deactivate_text_input(input_method->model, input_method);
deactivate_input_method(input_method);
wl_global_destroy(input_method->input_method_global);
wl_list_remove(&input_method->destroy_listener.link);
@ -843,8 +864,7 @@ handle_keyboard_focus(struct wl_listener *listener, void *data)
return;
if (!surface || input_method->model->surface != surface)
deactivate_text_input(input_method->model,
input_method);
deactivate_input_method(input_method);
}
static void

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