Dogcows Code - chaz/openbox/blob - otk/messagedialog.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #include "config.h"
   4
   5 #include "messagedialog.hh"
   6 #include "assassin.hh"
   7 #include "button.hh"
   8 #include "label.hh"
   9 #include "display.hh"
  10 #include "property.hh"
  11 #include "eventdispatcher.hh"
  12 #include "timer.hh"
  13
  14 #include <algorithm>
  15
  16 namespace otk {
  17
  18 class DialogButtonWidget : public Button {
  19   MessageDialog *_dia;
  20 public:
  21   DialogButtonWidget(Widget *parent, MessageDialog *dia,
  22                      const DialogButton &b)
  23     : Button(parent),
  24       _dia(dia)
  25   {
  26     assert(dia);
  27     setBevel(1);
  28     setMaxSize(Size(0,0));
  29     setText(b.label());
  30     setHighlighted(b.isDefault());
  31     show();
  32   }
  33
  34   virtual void buttonPressHandler(const XButtonEvent &e) {
  35     // limit to the left button
  36     if (e.button == Button1)
  37       Button::buttonPressHandler(e);
  38   }
  39   virtual void clickHandler(unsigned int) {
  40     _dia->setResult(DialogButton(text(), isHighlighted()));
  41     _dia->hide();
  42   }
  43 };
  44
  45 MessageDialog::MessageDialog(int screen, EventDispatcher *ed, ustring title,
  46                              ustring caption)
  47   : Widget(screen, ed, Widget::Vertical),
  48     _result("", false)
  49 {
  50   init(title, caption);
  51 }
  52
  53 MessageDialog::MessageDialog(EventDispatcher *ed, ustring title,
  54                              ustring caption)
  55   : Widget(DefaultScreen(**display), ed, Widget::Vertical),
  56     _result("", false)
  57 {
  58   init(title, caption);
  59 }
  60
  61 MessageDialog::MessageDialog(Widget *parent, ustring title, ustring caption)
  62   : Widget(parent, Widget::Vertical),
  63     _result("", false)
  64 {
  65   init(title, caption);
  66 }
  67
  68 void MessageDialog::init(const ustring &title, const ustring &caption)
  69 {
  70   _label = new Label(this);
  71   _label->show();
  72   _label->setHighlighted(true);
  73   _button_holder = new Widget(this, Widget::Horizontal);
  74   _button_holder->show();
  75   _return = XKeysymToKeycode(**display, XStringToKeysym("Return"));
  76   _escape = XKeysymToKeycode(**display, XStringToKeysym("Escape"));
  77
  78   setEventMask(eventMask() | KeyPressMask);
  79   _label->setText(caption);
  80   if (title.utf8())
  81     otk::Property::set(window(), otk::Property::atoms.net_wm_name,
  82                        otk::Property::utf8, title);
  83   otk::Property::set(window(), otk::Property::atoms.wm_name,
  84                      otk::Property::ascii, otk::ustring(title.c_str(), false));
  85
  86   // set WM Protocols on the window
  87   Atom protocols[2];
  88   protocols[0] = Property::atoms.wm_protocols;
  89   protocols[1] = Property::atoms.wm_delete_window;
  90   XSetWMProtocols(**display, window(), protocols, 2);
  91 }
  92
  93 MessageDialog::~MessageDialog()
  94 {
  95   if (visible()) hide();
  96   delete _button_holder;
  97   delete _label;
  98 }
  99
 100 const DialogButton& MessageDialog::run()
 101 {
 102   if (!visible())
 103     show();
 104
 105   while (visible()) {
 106     dispatcher()->dispatchEvents();
 107     if (visible())
 108       Timer::dispatchTimers(); // fire pending events
 109   }
 110   return _result;
 111 }
 112
 113 void MessageDialog::addButton(const DialogButton &b)
 114 {
 115   _button_widgets.push_back(new DialogButtonWidget(_button_holder,
 116                                                    this, b));
 117 }
 118
 119 void MessageDialog::focus()
 120 {
 121   if (visible())
 122     XSetInputFocus(**display, window(), None, CurrentTime);
 123 }
 124
 125 void MessageDialog::show()
 126 {
 127   Rect r;
 128
 129   if (parent())
 130     r = parent()->area();
 131   else
 132     r = Rect(Point(0, 0), display->screenInfo(screen())->size());
 133
 134   XSizeHints size;
 135   size.flags = PMinSize | PPosition | PWinGravity;
 136   size.min_width = minSize().width();
 137   size.min_height = minSize().height();
 138   size.win_gravity = CenterGravity;
 139
 140   Size dest = minSize();
 141   if (dest.width() < 200 || dest.height() < 100) {
 142     if (dest.width() < 200 && dest.height() < 100) dest = Size(200, 100);
 143     else if (dest.width() < 200) dest = Size(200, dest.height());
 144     else dest = Size(dest.width(), 100);
 145     resize(dest);
 146   }
 147
 148   // center it above its parent
 149   move(Point(r.x() + (r.width() - dest.width()) / 2,
 150              r.y() + (r.height() - dest.height()) / 2));
 151
 152   XSetWMNormalHints(**display, window(), &size);
 153
 154   Widget::show();
 155 }
 156
 157 void MessageDialog::hide()
 158 {
 159   Widget::hide();
 160   std::for_each(_button_widgets.begin(), _button_widgets.end(),
 161                 PointerAssassin());
 162 }
 163
 164 void MessageDialog::keyPressHandler(const XKeyEvent &e)
 165 {
 166   if (e.keycode == _return) {
 167     std::vector<Button *>::const_iterator it, end = _button_widgets.end();
 168     for (it = _button_widgets.begin(); it != end; ++it)
 169       if ((*it)->isHighlighted()) {
 170         _result = DialogButton((*it)->text(), true);
 171         hide();
 172         break;
 173       }
 174   } else if (e.keycode == _escape) {
 175     hide();
 176   }
 177 }
 178
 179 void MessageDialog::clientMessageHandler(const XClientMessageEvent &e)
 180 {
 181   EventHandler::clientMessageHandler(e);
 182   if (e.message_type == Property::atoms.wm_protocols &&
 183       static_cast<Atom>(e.data.l[0]) == Property::atoms.wm_delete_window)
 184     hide();
 185 }
 186
 187 }