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 DialogButton MessageDialog::_default_result("", false);
  19
  20 class DialogButtonWidget : public Button {
  21   MessageDialog *_dia;
  22   const DialogButton &_res;
  23 public:
  24   DialogButtonWidget(Widget *parent, MessageDialog *dia,
  25                      const DialogButton &b)
  26     : Button(parent),
  27       _dia(dia),
  28       _res(b)
  29   {
  30     assert(dia);
  31     setBevel(1);
  32     setMaxSize(Size(0,0));
  33     setText(b.label());
  34     setHighlighted(b.isDefault());
  35     show();
  36   }
  37
  38   virtual void buttonPressHandler(const XButtonEvent &e) {
  39     // limit to the left button
  40     if (e.button == Button1)
  41       Button::buttonPressHandler(e);
  42   }
  43   virtual void clickHandler(unsigned int) {
  44     _dia->setResult(_res);
  45     _dia->hide();
  46   }
  47 };
  48
  49 MessageDialog::MessageDialog(int screen, EventDispatcher *ed, ustring title,
  50                              ustring caption)
  51   : Widget(screen, ed, Widget::Vertical)
  52 {
  53   init(title, caption);
  54 }
  55
  56 MessageDialog::MessageDialog(EventDispatcher *ed, ustring title,
  57                              ustring caption)
  58   : Widget(DefaultScreen(**display), ed, Widget::Vertical)
  59 {
  60   init(title, caption);
  61 }
  62
  63 MessageDialog::MessageDialog(Widget *parent, ustring title, ustring caption)
  64   : Widget(parent, Widget::Vertical)
  65 {
  66   init(title, caption);
  67 }
  68
  69 void MessageDialog::init(const ustring &title, const ustring &caption)
  70 {
  71   _label = new Label(this);
  72   _label->show();
  73   _label->setHighlighted(true);
  74   _button_holder = new Widget(this, Widget::Horizontal);
  75   _button_holder->show();
  76   _return = XKeysymToKeycode(**display, XStringToKeysym("Return"));
  77   _escape = XKeysymToKeycode(**display, XStringToKeysym("Escape"));
  78   _result = &_default_result;
  79
  80   setEventMask(eventMask() | KeyPressMask);
  81   _label->setText(caption);
  82   if (title.utf8())
  83     otk::Property::set(window(), otk::Property::atoms.net_wm_name,
  84                        otk::Property::utf8, title);
  85   otk::Property::set(window(), otk::Property::atoms.wm_name,
  86                      otk::Property::ascii, otk::ustring(title.c_str(), false));
  87
  88   // set WM Protocols on the window
  89   Atom protocols[2];
  90   protocols[0] = Property::atoms.wm_protocols;
  91   protocols[1] = Property::atoms.wm_delete_window;
  92   XSetWMProtocols(**display, window(), protocols, 2);
  93 }
  94
  95 MessageDialog::~MessageDialog()
  96 {
  97   if (visible()) hide();
  98   delete _button_holder;
  99   delete _label;
 100 }
 101
 102 const DialogButton& MessageDialog::run()
 103 {
 104   if (!visible())
 105     show();
 106
 107   while (visible()) {
 108     dispatcher()->dispatchEvents();
 109     if (visible())
 110       Timer::dispatchTimers(); // fire pending events
 111   }
 112   return *_result;
 113 }
 114
 115 void MessageDialog::focus()
 116 {
 117   if (visible())
 118     XSetInputFocus(**display, window(), None, CurrentTime);
 119 }
 120
 121 void MessageDialog::show()
 122 {
 123   std::vector<DialogButton>::const_iterator it, end = _buttons.end();
 124   for (it = _buttons.begin(); it != end; ++it)
 125     _button_widgets.push_back(new DialogButtonWidget(_button_holder,
 126                                                      this, *it));
 127
 128   Rect r;
 129
 130   if (parent())
 131     r = parent()->area();
 132   else
 133     r = Rect(Point(0, 0), display->screenInfo(screen())->size());
 134
 135   XSizeHints size;
 136   size.flags = PMinSize | PPosition | PWinGravity;
 137   size.min_width = minSize().width();
 138   size.min_height = minSize().height();
 139   size.win_gravity = CenterGravity;
 140
 141   Size dest = minSize();
 142   if (dest.width() < 200 || dest.height() < 100) {
 143     if (dest.width() < 200 && dest.height() < 100) dest = Size(200, 100);
 144     else if (dest.width() < 200) dest = Size(200, dest.height());
 145     else dest = Size(dest.width(), 100);
 146     resize(dest);
 147   }
 148
 149   // center it above its parent
 150   move(Point(r.x() + (r.width() - dest.width()) / 2,
 151              r.y() + (r.height() - dest.height()) / 2));
 152
 153   XSetWMNormalHints(**display, window(), &size);
 154
 155   Widget::show();
 156 }
 157
 158 void MessageDialog::hide()
 159 {
 160   Widget::hide();
 161   std::for_each(_button_widgets.begin(), _button_widgets.end(),
 162                 PointerAssassin());
 163 }
 164
 165 void MessageDialog::keyPressHandler(const XKeyEvent &e)
 166 {
 167   if (e.keycode == _return) {
 168     std::vector<DialogButton>::const_iterator it, end = _buttons.end();
 169     for (it = _buttons.begin(); it != end; ++it)
 170       if (it->isDefault()) {
 171         _result = &(*it);
 172         hide();
 173         break;
 174       }
 175   } else if (e.keycode == _escape) {
 176     hide();
 177   }
 178 }
 179
 180 void MessageDialog::clientMessageHandler(const XClientMessageEvent &e)
 181 {
 182   EventHandler::clientMessageHandler(e);
 183   if (e.message_type == Property::atoms.wm_protocols &&
 184       static_cast<Atom>(e.data.l[0]) == Property::atoms.wm_delete_window)
 185     hide();
 186 }
 187
 188 }