mainnika
/
weston
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

cairo-util: Rework frame button handling

Browse Source 
This makes button handling more correct concerning drags.  Also,
frame_pointer_button returns the original button location in the case of a
release.  This makes filtering of button events much easier for users of
the cair-util frame code.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
dev
Jason Ekstrand 11 years ago committed by Kristian Høgsberg
parent 48ce42177f
commit 0bdd58f6c0
2 changed files with 122 additions and 42 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 8
      shared/cairo-util.h
  2. 154
      shared/frame.c

8
shared/cairo-util.h
Unescape View File

@ -183,7 +183,13 @@ frame_pointer_motion(struct frame *frame, void *pointer, int x, int y);
void
frame_pointer_leave(struct frame *frame, void *pointer);
/* May set:
/* Call to indicate that a button has been pressed/released. The return
* value for a button release will be the same as for the corresponding
* press. This allows you to more easily track grabs. If you want the
* actual location, simply keep the location from the last
* frame_pointer_motion call.
*
* May set:
* FRAME_STATUS_MINIMIZE
* FRAME_STATUS_MAXIMIZE
* FRAME_STATUS_CLOSE

154
shared/frame.c
Unescape View File

@ -54,6 +54,13 @@ struct frame_button {
enum frame_status status_effect;
};
struct frame_pointer_button {
struct wl_list link;
uint32_t button;
enum theme_location press_location;
struct frame_button *frame_button;
};
struct frame_pointer {
struct wl_list link;
void *data;
@ -61,7 +68,7 @@ struct frame_pointer {
int x, y;
struct frame_button *hover_button;
int active;
struct wl_list down_buttons;
};
struct frame_touch {
@ -141,10 +148,6 @@ frame_button_leave(struct frame_button *button, struct frame_pointer *pointer)
button->hover_count--;
if (!button->hover_count)
button->frame->status |= FRAME_STATUS_REPAINT;
/* In this case, we won't get a release */
if (pointer->active)
button->press_count--;
}
static void
@ -162,13 +165,23 @@ static void
frame_button_release(struct frame_button *button)
{
button->press_count--;
if (!button->press_count)
if (button->press_count)
return;
button->frame->status |= FRAME_STATUS_REPAINT;
if (!(button->flags & FRAME_BUTTON_CLICK_DOWN))
button->frame->status |= button->status_effect;
}
static void
frame_button_cancel(struct frame_button *button)
{
button->press_count--;
if (!button->press_count)
button->frame->status |= FRAME_STATUS_REPAINT;
}
static void
frame_button_repaint(struct frame_button *button, cairo_t *cr)
{
@ -225,6 +238,7 @@ frame_pointer_get(struct frame *frame, void *data)
return NULL;
pointer->data = data;
wl_list_init(&pointer->down_buttons);
wl_list_insert(&frame->pointers, &pointer->link);
return pointer;
@ -616,8 +630,6 @@ frame_pointer_motion(struct frame *frame, void *data, int x, int y)
if (pointer->hover_button)
frame_button_leave(pointer->hover_button, pointer);
/* No drags */
pointer->active = 0;
pointer->hover_button = button;
if (pointer->hover_button)
@ -626,24 +638,97 @@ frame_pointer_motion(struct frame *frame, void *data, int x, int y)
return location;
}
static void
frame_pointer_button_destroy(struct frame_pointer_button *button)
{
wl_list_remove(&button->link);
free(button);
}
static void
frame_pointer_button_press(struct frame *frame, struct frame_pointer *pointer,
struct frame_pointer_button *button)
{
if (button->button == BTN_RIGHT) {
if (button->press_location == THEME_LOCATION_TITLEBAR)
frame->status |= FRAME_STATUS_MENU;
frame_pointer_button_destroy(button);
} else if (button->button == BTN_LEFT) {
if (pointer->hover_button) {
frame_button_press(pointer->hover_button);
} else {
switch (button->press_location) {
case THEME_LOCATION_TITLEBAR:
frame->status |= FRAME_STATUS_MOVE;
frame_pointer_button_destroy(button);
break;
case THEME_LOCATION_RESIZING_TOP:
case THEME_LOCATION_RESIZING_BOTTOM:
case THEME_LOCATION_RESIZING_LEFT:
case THEME_LOCATION_RESIZING_RIGHT:
case THEME_LOCATION_RESIZING_TOP_LEFT:
case THEME_LOCATION_RESIZING_TOP_RIGHT:
case THEME_LOCATION_RESIZING_BOTTOM_LEFT:
case THEME_LOCATION_RESIZING_BOTTOM_RIGHT:
frame->status |= FRAME_STATUS_RESIZE;
frame_pointer_button_destroy(button);
break;
default:
break;
}
}
}
}
static void
frame_pointer_button_release(struct frame *frame, struct frame_pointer *pointer,
struct frame_pointer_button *button)
{
if (button->button == BTN_LEFT && button->frame_button) {
if (button->frame_button == pointer->hover_button)
frame_button_release(button->frame_button);
else
frame_button_cancel(button->frame_button);
}
}
static void
frame_pointer_button_cancel(struct frame *frame, struct frame_pointer *pointer,
struct frame_pointer_button *button)
{
if (button->frame_button)
frame_button_cancel(button->frame_button);
}
void
frame_pointer_leave(struct frame *frame, void *data)
{
struct frame_pointer *pointer = frame_pointer_get(frame, data);
struct frame_pointer_button *button, *next;
if (!pointer)
return;
if (pointer->hover_button)
frame_button_leave(pointer->hover_button, pointer);
wl_list_for_each_safe(button, next, &pointer->down_buttons, link) {
frame_pointer_button_cancel(frame, pointer, button);
frame_pointer_button_destroy(button);
}
frame_pointer_destroy(pointer);
}
enum theme_location
frame_pointer_button(struct frame *frame, void *data,
uint32_t button, enum frame_button_state state)
uint32_t btn, enum frame_button_state state)
{
struct frame_pointer *pointer = frame_pointer_get(frame, data);
struct frame_pointer_button *button;
enum theme_location location;
location = theme_get_location(frame->theme, pointer->x, pointer->y,
@ -654,40 +739,29 @@ frame_pointer_button(struct frame *frame, void *data,
if (!pointer)
return location;
if (button == BTN_RIGHT) {
if (state == FRAME_BUTTON_PRESSED &&
location == THEME_LOCATION_TITLEBAR)
frame->status |= FRAME_STATUS_MENU;
} else if (button == BTN_LEFT && state == FRAME_BUTTON_PRESSED) {
if (pointer->hover_button) {
pointer->active = 1;
frame_button_press(pointer->hover_button);
if (state == FRAME_BUTTON_PRESSED) {
button = malloc(sizeof *button);
if (!button)
return location;
} else {
switch (location) {
case THEME_LOCATION_TITLEBAR:
frame->status |= FRAME_STATUS_MOVE;
break;
case THEME_LOCATION_RESIZING_TOP:
case THEME_LOCATION_RESIZING_BOTTOM:
case THEME_LOCATION_RESIZING_LEFT:
case THEME_LOCATION_RESIZING_RIGHT:
case THEME_LOCATION_RESIZING_TOP_LEFT:
case THEME_LOCATION_RESIZING_TOP_RIGHT:
case THEME_LOCATION_RESIZING_BOTTOM_LEFT:
case THEME_LOCATION_RESIZING_BOTTOM_RIGHT:
frame->status |= FRAME_STATUS_RESIZE;
break;
default:
button->button = btn;
button->press_location = location;
button->frame_button = pointer->hover_button;
wl_list_insert(&pointer->down_buttons, &button->link);
frame_pointer_button_press(frame, pointer, button);
} else if (state == FRAME_BUTTON_RELEASED) {
button = NULL;
wl_list_for_each(button, &pointer->down_buttons, link)
if (button->button == btn)
break;
}
}
} else if (button == BTN_LEFT && state == FRAME_BUTTON_RELEASED) {
if (pointer->hover_button && pointer->active)
frame_button_release(pointer->hover_button);
/* Make sure we didn't hit the end */
if (&button->link == &pointer->down_buttons)
return location;
pointer->active = 0;
location = button->press_location;
frame_pointer_button_release(frame, pointer, button);
frame_pointer_button_destroy(button);
}
return location;

Write Preview
Loading…
Cancel
Save