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support for modal children, both in the focus code and in the raise/lower code

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This commit is contained in:
Dana Jansens 2003-02-03 10:35:26 +00:00
parent e44c0cba4b
commit c9389a8970
3 changed files with 110 additions and 34 deletions
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93
src/client.cc
View file

@ -53,6 +53,8 @@ Client::Client(int screen, Window window)
_positioned = false;
// nothing is disabled unless specified
_disabled_decorations = 0;
// no modal children until they set themselves
_modal_child = 0;
getArea();
getDesktop();
@ -105,6 +107,8 @@ Client::~Client()
}
// clean up parents reference to this
if (_modal)
setModal(false);
if (_transient_for)
_transient_for->_transients.remove(this); // remove from old parent
@ -674,11 +678,18 @@ void Client::updateTransientFor()
// if anything has changed...
if (c != _transient_for) {
bool m = _modal;
if (_modal)
setModal(false);
if (_transient_for)
_transient_for->_transients.remove(this); // remove from old parent
_transient_for = c;
if (_transient_for)
_transient_for->_transients.push_back(this); // add to new parent
if (m)
setModal(true);
}
}
@ -791,12 +802,59 @@ void Client::setDesktop(long target)
}
Client *Client::findModalChild(Client *skip) const
{
Client *ret = 0;
// find a modal child recursively and try focus it
List::const_iterator it, end = _transients.end();
for (it = _transients.begin(); it != end; ++it)
if ((*it)->_modal && *it != skip)
return *it; // got one
// none of our direct children are modal, let them try check
for (it = _transients.begin(); it != end; ++it)
if ((ret = (*it)->findModalChild()))
return ret; // got one
return ret;
}
void Client::setModal(bool modal)
{
if (modal) {
Client *c = this;
while (c->_transient_for) {
c = c->_transient_for;
if (c->_modal_child) break; // already has a modal child
c->_modal_child = this;
}
} else {
// try find a replacement modal dialog
Client *replacement = 0;
Client *c = this;
while (c->_transient_for) // go up the tree
c = c->_transient_for;
replacement = c->findModalChild(this); // find a modal child, skipping this
c = this;
while (c->_transient_for) {
c = c->_transient_for;
if (c->_modal_child != this) break; // has a different modal child
c->_modal_child = replacement;
}
}
_modal = modal;
}
void Client::setState(StateAction action, long data1, long data2)
{
bool shadestate = _shaded;
bool fsstate = _fullscreen;
bool maxh = _max_horz;
bool maxv = _max_vert;
bool modal = _modal;
if (!(action == State_Add || action == State_Remove ||
action == State_Toggle))
@ -832,8 +890,7 @@ void Client::setState(StateAction action, long data1, long data2)
if (action == State_Add) {
if (state == otk::Property::atoms.net_wm_state_modal) {
if (_modal) continue;
_modal = true;
// XXX: give it focus if another window has focus that shouldnt now
modal = true;
} else if (state == otk::Property::atoms.net_wm_state_maximized_vert) {
maxv = true;
} else if (state == otk::Property::atoms.net_wm_state_maximized_horz) {
@ -858,7 +915,7 @@ void Client::setState(StateAction action, long data1, long data2)
} else { // action == State_Remove
if (state == otk::Property::atoms.net_wm_state_modal) {
if (!_modal) continue;
_modal = false;
modal = false;
} else if (state == otk::Property::atoms.net_wm_state_maximized_vert) {
maxv = false;
} else if (state == otk::Property::atoms.net_wm_state_maximized_horz) {
@ -895,6 +952,8 @@ void Client::setState(StateAction action, long data1, long data2)
maximize(maxv, 2, true);
}
}
if (modal != _modal)
setModal(modal);
// change fullscreen state before shading, as it will affect if the window
// can shade or not
if (fsstate != _fullscreen)
@ -1303,6 +1362,11 @@ void Client::applyStartupState()
{
// these are in a carefully crafted order..
if (_modal) {
_modal = false;
setModal(true);
}
if (_iconic) {
_iconic = false;
setDesktop(ICONIC_DESKTOP);
@ -1548,33 +1612,18 @@ void Client::disableDecorations(DecorationFlags flags)
}
bool Client::focusModalChild()
{
// find a modal child recursively and try focus it
List::iterator it, end = _transients.end();
for (it = _transients.begin(); it != end; ++it)
if ((*it)->focusModalChild())
return true; // got one
// none of our grand-children are modal, try our direct children
for (it = _transients.begin(); it != end; ++it)
if ((*it)->modal() && (*it)->focus())
return true; // got one
return false;
}
bool Client::focus()
{
// if we have a modal child, then focus it, not us
if (_modal_child)
return _modal_child->focus();
// won't try focus if the client doesn't want it, or if the window isn't
// visible on the screen
if (!(frame->isVisible() && (_can_focus || _focus_notify))) return false;
if (_focused) return true;
if (!_modal)
if (focusModalChild())
return true;
// do a check to see if the window has already been unmapped or destroyed
// do this intelligently while watching out for unmaps we've generated
// (ignore_unmaps > 0)

18
src/client.hh
View file

@ -295,6 +295,9 @@ private:
//! The window uses shape extension to be non-rectangular?
bool _shaped;
//! If the window has a modal child window, then this will point to it
Client *_modal_child;
//! The window is modal, so it must be processed before any windows it is
//! related to can be focused
bool _modal;
@ -381,6 +384,11 @@ private:
by sending it to any other valid desktop.
*/
void setDesktop(long desktop);
//! Set whether the window is modal or not
/*!
This adjusts references in parents etc to match.
*/
void setModal(bool modal);
//! Calculates the stacking layer for the client window
void calcLayer();
@ -472,11 +480,8 @@ private:
void internal_resize(Corner anchor, int w, int h, bool user = true,
int x = INT_MIN, int y = INT_MIN);
//! Attempts to focus a modal child of this window, recursively.
/*!
@return true if a modal child has been found and focused; otherwise, false.
*/
bool focusModalChild();
//! Attempts to find and return a modal child of this window, recursively.
Client *findModalChild(Client *skip = 0) const;
public:
#ifndef SWIG
@ -563,6 +568,9 @@ BB @param window The window id that the Client class should handle
//! Return the client this window is transient for
inline Client *transientFor() const { return _transient_for; }
//! Returns the window which is a modal child of this window
inline Client *modalChild() const { return _modal_child; }
//! Returns if the window is modal
/*!
If the window is modal, then no other windows that it is related to can get

21
src/screen.cc
View file

@ -637,6 +637,19 @@ void Screen::lowerWindow(Client *client)
Client::List::iterator it = --_stacking.end();
const Client::List::iterator end = _stacking.begin();
if (client->modal() && client->transientFor()) {
// don't let a modal window lower below its transient_for
it = std::find(_stacking.begin(), _stacking.end(), client->transientFor());
assert(it != _stacking.end());
wins[0] = (it == _stacking.begin() ? _focuswindow :
((*(--Client::List::const_iterator(it)))->frame->window()));
wins[1] = client->frame->window();
if (wins[0] == wins[1]) return; // already right above the window
_stacking.remove(client);
_stacking.insert(it, client);
} else {
for (; it != end && (*it)->layer() < client->layer(); --it);
if (*it == client) return; // already the bottom, return
@ -645,6 +658,7 @@ void Screen::lowerWindow(Client *client)
_stacking.remove(client);
_stacking.insert(++it, client);
}
XRestackWindows(**otk::display, wins, 2);
changeStackingList();
@ -676,7 +690,12 @@ void Screen::raiseWindow(Client *client)
_stacking.insert(it, client);
XRestackWindows(**otk::display, wins, 2);
changeStackingList();
// if the window has a modal child, then raise it after us to put it on top
if (client->modalChild())
raiseWindow(client->modalChild());
else
changeStackingList(); // no need to do this twice!
}
void Screen::changeDesktop(long desktop)