1 | /* |
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2 | * GNOME panel x stuff |
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3 | * |
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4 | * Copyright (C) 2000, 2001 Eazel, Inc. |
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5 | * 2002 Sun Microsystems Inc. |
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6 | * |
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7 | * Authors: George Lebl <jirka@5z.com> |
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8 | * Mark McLoughlin <mark@skynet.ie> |
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9 | * |
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10 | * Contains code from the Window Maker window manager |
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11 | * |
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12 | * Copyright (c) 1997-2002 Alfredo K. Kojima |
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13 | |
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14 | */ |
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15 | #include <config.h> |
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16 | #include <string.h> |
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17 | #include <unistd.h> |
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18 | |
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19 | #include <gdk/gdk.h> |
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20 | #include <gdk/gdkx.h> |
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21 | |
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22 | #include <X11/Xlib.h> |
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23 | #include <X11/Xatom.h> |
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24 | |
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25 | #include "xstuff.h" |
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26 | |
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27 | #include "global-keys.h" |
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28 | |
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29 | static Atom |
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30 | panel_atom_get (const char *atom_name) |
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31 | { |
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32 | static GHashTable *atom_hash; |
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33 | Display *xdisplay; |
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34 | Atom retval; |
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35 | |
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36 | g_return_val_if_fail (atom_name != NULL, None); |
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37 | |
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38 | xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()); |
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39 | |
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40 | if (!atom_hash) |
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41 | atom_hash = g_hash_table_new_full ( |
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42 | g_str_hash, g_str_equal, g_free, NULL); |
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43 | |
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44 | retval = GPOINTER_TO_UINT (g_hash_table_lookup (atom_hash, atom_name)); |
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45 | if (!retval) { |
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46 | retval = XInternAtom (xdisplay, atom_name, FALSE); |
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47 | |
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48 | if (retval != None) |
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49 | g_hash_table_insert (atom_hash, g_strdup (atom_name), |
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50 | GUINT_TO_POINTER (retval)); |
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51 | } |
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52 | |
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53 | return retval; |
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54 | } |
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55 | |
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56 | /* Stolen from deskguide */ |
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57 | static gpointer |
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58 | get_typed_property_data (Display *xdisplay, |
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59 | Window xwindow, |
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60 | Atom property, |
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61 | Atom requested_type, |
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62 | gint *size_p, |
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63 | guint expected_format) |
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64 | { |
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65 | static const guint prop_buffer_lengh = 1024 * 1024; |
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66 | unsigned char *prop_data = NULL; |
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67 | Atom type_returned = 0; |
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68 | unsigned long nitems_return = 0, bytes_after_return = 0; |
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69 | int format_returned = 0; |
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70 | gpointer data = NULL; |
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71 | gboolean abort = FALSE; |
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72 | |
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73 | g_return_val_if_fail (size_p != NULL, NULL); |
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74 | *size_p = 0; |
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75 | |
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76 | gdk_error_trap_push (); |
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77 | |
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78 | abort = XGetWindowProperty (xdisplay, |
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79 | xwindow, |
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80 | property, |
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81 | 0, prop_buffer_lengh, |
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82 | False, |
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83 | requested_type, |
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84 | &type_returned, &format_returned, |
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85 | &nitems_return, |
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86 | &bytes_after_return, |
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87 | &prop_data) != Success; |
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88 | if (gdk_error_trap_pop () || |
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89 | type_returned == None) |
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90 | abort++; |
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91 | if (!abort && |
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92 | requested_type != AnyPropertyType && |
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93 | requested_type != type_returned) |
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94 | { |
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95 | g_warning (G_GNUC_PRETTY_FUNCTION "(): Property has wrong type, probably on crack"); |
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96 | abort++; |
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97 | } |
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98 | if (!abort && bytes_after_return) |
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99 | { |
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100 | g_warning (G_GNUC_PRETTY_FUNCTION "(): Eeek, property has more than %u bytes, stored on harddisk?", |
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101 | prop_buffer_lengh); |
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102 | abort++; |
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103 | } |
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104 | if (!abort && expected_format && expected_format != format_returned) |
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105 | { |
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106 | g_warning (G_GNUC_PRETTY_FUNCTION "(): Expected format (%u) unmatched (%d), programmer was drunk?", |
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107 | expected_format, format_returned); |
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108 | abort++; |
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109 | } |
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110 | if (!abort && prop_data && nitems_return && format_returned) |
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111 | { |
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112 | switch (format_returned) |
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113 | { |
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114 | case 32: |
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115 | *size_p = nitems_return * 4; |
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116 | if (sizeof (gulong) == 8) |
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117 | { |
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118 | guint32 i, *mem = g_malloc0 (*size_p + 1); |
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119 | gulong *prop_longs = (gulong*) prop_data; |
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120 | |
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121 | for (i = 0; i < *size_p / 4; i++) |
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122 | mem[i] = prop_longs[i]; |
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123 | data = mem; |
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124 | } |
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125 | break; |
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126 | case 16: |
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127 | *size_p = nitems_return * 2; |
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128 | break; |
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129 | case 8: |
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130 | *size_p = nitems_return; |
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131 | break; |
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132 | default: |
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133 | g_warning ("Unknown property data format with %d bits (extraterrestrial?)", |
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134 | format_returned); |
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135 | break; |
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136 | } |
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137 | if (!data && *size_p) |
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138 | { |
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139 | guint8 *mem = g_malloc (*size_p + 1); |
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140 | |
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141 | memcpy (mem, prop_data, *size_p); |
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142 | mem[*size_p] = 0; |
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143 | data = mem; |
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144 | } |
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145 | } |
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146 | |
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147 | if (prop_data) |
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148 | XFree (prop_data); |
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149 | |
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150 | return data; |
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151 | } |
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152 | |
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153 | gboolean |
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154 | xstuff_is_compliant_wm (void) |
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155 | { |
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156 | Display *xdisplay; |
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157 | Window root_window; |
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158 | gpointer data; |
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159 | int size; |
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160 | |
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161 | xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()); |
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162 | root_window = GDK_WINDOW_XWINDOW ( |
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163 | gdk_get_default_root_window ()); |
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164 | |
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165 | /* FIXME this is totally broken; should be using |
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166 | * gdk_net_wm_supports() on particular hints when we rely |
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167 | * on those particular hints |
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168 | */ |
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169 | data = get_typed_property_data ( |
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170 | xdisplay, root_window, |
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171 | panel_atom_get ("_NET_SUPPORTED"), |
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172 | XA_ATOM, &size, 32); |
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173 | |
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174 | if (!data) |
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175 | return FALSE; |
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176 | |
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177 | /* Actually checks for some of these */ |
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178 | g_free (data); |
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179 | return TRUE; |
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180 | } |
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181 | |
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182 | gboolean |
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183 | xstuff_net_wm_supports (const char *hint) |
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184 | { |
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185 | return gdk_net_wm_supports (gdk_atom_intern (hint, FALSE)); |
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186 | } |
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187 | |
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188 | void |
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189 | xstuff_set_no_group_and_no_input (GdkWindow *win) |
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190 | { |
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191 | XWMHints *old_wmhints; |
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192 | XWMHints wmhints = {0}; |
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193 | |
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194 | XDeleteProperty (GDK_WINDOW_XDISPLAY (win), |
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195 | GDK_WINDOW_XWINDOW (win), |
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196 | panel_atom_get ("WM_CLIENT_LEADER")); |
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197 | |
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198 | old_wmhints = XGetWMHints (GDK_WINDOW_XDISPLAY (win), |
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199 | GDK_WINDOW_XWINDOW (win)); |
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200 | /* General paranoia */ |
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201 | if (old_wmhints != NULL) { |
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202 | memcpy (&wmhints, old_wmhints, sizeof (XWMHints)); |
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203 | XFree (old_wmhints); |
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204 | |
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205 | wmhints.flags &= ~WindowGroupHint; |
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206 | wmhints.flags |= InputHint; |
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207 | wmhints.input = False; |
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208 | wmhints.window_group = 0; |
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209 | } else { |
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210 | /* General paranoia */ |
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211 | wmhints.flags = InputHint | StateHint; |
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212 | wmhints.window_group = 0; |
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213 | wmhints.input = False; |
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214 | wmhints.initial_state = NormalState; |
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215 | } |
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216 | |
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217 | XSetWMHints (GDK_WINDOW_XDISPLAY (win), |
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218 | GDK_WINDOW_XWINDOW (win), |
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219 | &wmhints); |
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220 | } |
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221 | |
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222 | /* This is such a broken stupid function. */ |
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223 | void |
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224 | xstuff_set_pos_size (GdkWindow *window, int x, int y, int w, int h) |
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225 | { |
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226 | XSizeHints size_hints; |
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227 | int old_x, old_y, old_w, old_h; |
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228 | |
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229 | old_x = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (window), "xstuff-cached-x")); |
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230 | old_y = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (window), "xstuff-cached-y")); |
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231 | old_w = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (window), "xstuff-cached-w")); |
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232 | old_h = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (window), "xstuff-cached-h")); |
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233 | |
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234 | if (x == old_x && y == old_y && w == old_w && h == old_h) |
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235 | return; |
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236 | |
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237 | /* Do not add USPosition / USSize here, fix the damn WM */ |
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238 | size_hints.flags = PPosition | PSize | PMaxSize | PMinSize; |
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239 | size_hints.x = 0; /* window managers aren't supposed to and */ |
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240 | size_hints.y = 0; /* don't use these fields */ |
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241 | size_hints.width = w; |
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242 | size_hints.height = h; |
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243 | size_hints.min_width = w; |
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244 | size_hints.min_height = h; |
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245 | size_hints.max_width = w; |
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246 | size_hints.max_height = h; |
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247 | |
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248 | gdk_error_trap_push (); |
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249 | |
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250 | XSetWMNormalHints (GDK_WINDOW_XDISPLAY (window), |
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251 | GDK_WINDOW_XWINDOW (window), |
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252 | &size_hints); |
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253 | |
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254 | gdk_window_move_resize (window, x, y, w, h); |
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255 | |
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256 | gdk_flush (); |
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257 | gdk_error_trap_pop (); |
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258 | |
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259 | g_object_set_data (G_OBJECT (window), "xstuff-cached-x", GINT_TO_POINTER (x)); |
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260 | g_object_set_data (G_OBJECT (window), "xstuff-cached-y", GINT_TO_POINTER (y)); |
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261 | g_object_set_data (G_OBJECT (window), "xstuff-cached-w", GINT_TO_POINTER (w)); |
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262 | g_object_set_data (G_OBJECT (window), "xstuff-cached-h", GINT_TO_POINTER (h)); |
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263 | } |
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264 | |
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265 | void |
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266 | xstuff_set_wmspec_dock_hints (GdkWindow *window, |
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267 | gboolean autohide) |
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268 | { |
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269 | Atom atoms [2] = { None, None }; |
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270 | |
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271 | if (!autohide) |
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272 | atoms [0] = panel_atom_get ("_NET_WM_WINDOW_TYPE_DOCK"); |
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273 | else { |
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274 | atoms [0] = panel_atom_get ("_GNOME_WINDOW_TYPE_AUTOHIDE_PANEL"); |
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275 | atoms [1] = panel_atom_get ("_NET_WM_WINDOW_TYPE_DOCK"); |
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276 | } |
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277 | |
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278 | XChangeProperty (GDK_WINDOW_XDISPLAY (window), |
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279 | GDK_WINDOW_XWINDOW (window), |
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280 | panel_atom_get ("_NET_WM_WINDOW_TYPE"), |
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281 | XA_ATOM, 32, PropModeReplace, |
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282 | (unsigned char *) atoms, |
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283 | autohide ? 2 : 1); |
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284 | } |
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285 | |
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286 | void |
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287 | xstuff_set_wmspec_strut (GdkWindow *window, |
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288 | int left, |
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289 | int right, |
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290 | int top, |
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291 | int bottom) |
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292 | { |
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293 | long vals [4]; |
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294 | |
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295 | vals [0] = left; |
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296 | vals [1] = right; |
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297 | vals [2] = top; |
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298 | vals [3] = bottom; |
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299 | |
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300 | XChangeProperty (GDK_WINDOW_XDISPLAY (window), |
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301 | GDK_WINDOW_XWINDOW (window), |
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302 | panel_atom_get ("_NET_WM_STRUT"), |
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303 | XA_CARDINAL, 32, PropModeReplace, |
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304 | (unsigned char *) vals, 4); |
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305 | } |
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306 | |
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307 | void |
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308 | xstuff_delete_property (GdkWindow *window, const char *name) |
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309 | { |
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310 | Display *xdisplay = GDK_WINDOW_XDISPLAY (window); |
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311 | Window xwindow = GDK_WINDOW_XWINDOW (window); |
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312 | |
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313 | XDeleteProperty (xdisplay, xwindow, |
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314 | panel_atom_get (name)); |
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315 | } |
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316 | |
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317 | void |
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318 | xstuff_init (void) |
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319 | { |
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320 | GdkDisplay *display; |
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321 | int screens, i; |
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322 | |
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323 | display = gdk_display_get_default (); |
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324 | screens = gdk_display_get_n_screens (display); |
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325 | |
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326 | for (i = 0; i < screens; i++) { |
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327 | GdkScreen *screen; |
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328 | GdkWindow *root_window; |
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329 | |
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330 | screen = gdk_display_get_screen (display, i); |
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331 | root_window = gdk_screen_get_root_window (screen); |
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332 | |
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333 | gdk_window_add_filter ( |
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334 | root_window, |
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335 | (GdkFilterFunc) panel_global_keys_filter, |
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336 | screen); |
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337 | } |
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338 | } |
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339 | |
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340 | /* Zoom animation */ |
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341 | #define MINIATURIZE_ANIMATION_FRAMES_Z 1 |
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342 | #define MINIATURIZE_ANIMATION_STEPS_Z 6 |
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343 | /* the delay per draw */ |
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344 | #define MINIATURIZE_ANIMATION_DELAY_Z 10 |
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345 | |
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346 | static void |
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347 | draw_zoom_animation (GdkScreen *gscreen, |
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348 | int x, int y, int w, int h, |
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349 | int fx, int fy, int fw, int fh, |
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350 | int steps) |
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351 | { |
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352 | #define FRAMES (MINIATURIZE_ANIMATION_FRAMES_Z) |
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353 | float cx[FRAMES], cy[FRAMES], cw[FRAMES], ch[FRAMES]; |
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354 | float xstep, ystep, wstep, hstep; |
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355 | int i, j; |
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356 | GC frame_gc; |
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357 | XGCValues gcv; |
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358 | GdkColor color = { 65535, 65535, 65535 }; |
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359 | Display *dpy; |
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360 | Window root_win; |
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361 | int screen; |
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362 | int depth; |
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363 | |
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364 | dpy = gdk_x11_display_get_xdisplay (gdk_screen_get_display (gscreen)); |
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365 | root_win = gdk_x11_drawable_get_xid (gdk_screen_get_root_window (gscreen)); |
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366 | screen = gdk_screen_get_number (gscreen); |
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367 | depth = gdk_drawable_get_depth (gdk_screen_get_root_window (gscreen)); |
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368 | |
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369 | /* frame GC */ |
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370 | gdk_colormap_alloc_color ( |
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371 | gdk_screen_get_system_colormap (gscreen), &color, FALSE, TRUE); |
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372 | gcv.function = GXxor; |
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373 | /* this will raise the probability of the XORed color being different |
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374 | * of the original color in PseudoColor when not all color cells are |
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375 | * initialized */ |
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376 | if (DefaultVisual(dpy, screen)->class==PseudoColor) |
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377 | gcv.plane_mask = (1<<(depth-1))|1; |
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378 | else |
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379 | gcv.plane_mask = AllPlanes; |
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380 | gcv.foreground = color.pixel; |
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381 | if (gcv.foreground == 0) |
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382 | gcv.foreground = 1; |
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383 | gcv.line_width = 1; |
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384 | gcv.subwindow_mode = IncludeInferiors; |
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385 | gcv.graphics_exposures = False; |
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386 | |
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387 | frame_gc = XCreateGC(dpy, root_win, GCForeground|GCGraphicsExposures |
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388 | |GCFunction|GCSubwindowMode|GCLineWidth |
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389 | |GCPlaneMask, &gcv); |
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390 | |
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391 | xstep = (float)(fx-x)/steps; |
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392 | ystep = (float)(fy-y)/steps; |
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393 | wstep = (float)(fw-w)/steps; |
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394 | hstep = (float)(fh-h)/steps; |
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395 | |
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396 | for (j=0; j<FRAMES; j++) { |
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397 | cx[j] = (float)x; |
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398 | cy[j] = (float)y; |
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399 | cw[j] = (float)w; |
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400 | ch[j] = (float)h; |
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401 | } |
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402 | XGrabServer(dpy); |
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403 | for (i=0; i<steps; i++) { |
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404 | for (j=0; j<FRAMES; j++) { |
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405 | XDrawRectangle(dpy, root_win, frame_gc, |
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406 | (int)cx[j], (int)cy[j], (int)cw[j], (int)ch[j]); |
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407 | } |
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408 | XFlush(dpy); |
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409 | #if (MINIATURIZE_ANIMATION_DELAY_Z > 0) |
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410 | usleep(MINIATURIZE_ANIMATION_DELAY_Z); |
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411 | #else |
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412 | usleep(10); |
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413 | #endif |
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414 | for (j=0; j<FRAMES; j++) { |
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415 | XDrawRectangle(dpy, root_win, frame_gc, |
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416 | (int)cx[j], (int)cy[j], (int)cw[j], (int)ch[j]); |
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417 | if (j<FRAMES-1) { |
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418 | cx[j]=cx[j+1]; |
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419 | cy[j]=cy[j+1]; |
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420 | cw[j]=cw[j+1]; |
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421 | ch[j]=ch[j+1]; |
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422 | } else { |
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423 | cx[j]+=xstep; |
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424 | cy[j]+=ystep; |
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425 | cw[j]+=wstep; |
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426 | ch[j]+=hstep; |
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427 | } |
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428 | } |
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429 | } |
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430 | |
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431 | for (j=0; j<FRAMES; j++) { |
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432 | XDrawRectangle(dpy, root_win, frame_gc, |
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433 | (int)cx[j], (int)cy[j], (int)cw[j], (int)ch[j]); |
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434 | } |
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435 | XFlush(dpy); |
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436 | #if (MINIATURIZE_ANIMATION_DELAY_Z > 0) |
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437 | usleep(MINIATURIZE_ANIMATION_DELAY_Z); |
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438 | #else |
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439 | usleep(10); |
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440 | #endif |
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441 | for (j=0; j<FRAMES; j++) { |
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442 | XDrawRectangle(dpy, root_win, frame_gc, |
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443 | (int)cx[j], (int)cy[j], (int)cw[j], (int)ch[j]); |
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444 | } |
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445 | |
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446 | XUngrabServer(dpy); |
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447 | XFreeGC (dpy, frame_gc); |
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448 | gdk_colormap_free_colors (gdk_screen_get_system_colormap (gscreen), |
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449 | &color, 1); |
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450 | } |
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451 | #undef FRAMES |
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452 | |
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453 | void |
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454 | xstuff_zoom_animate (GtkWidget *widget, GdkRectangle *opt_rect) |
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455 | { |
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456 | GdkScreen *gscreen; |
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457 | GdkRectangle rect, dest; |
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458 | int monitor; |
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459 | |
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460 | if (opt_rect) |
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461 | rect = *opt_rect; |
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462 | else { |
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463 | gdk_window_get_origin (widget->window, &rect.x, &rect.y); |
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464 | if (GTK_WIDGET_NO_WINDOW (widget)) { |
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465 | rect.x += widget->allocation.x; |
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466 | rect.y += widget->allocation.y; |
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467 | } |
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468 | rect.height = widget->allocation.height; |
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469 | rect.width = widget->allocation.width; |
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470 | } |
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471 | |
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472 | gscreen = gtk_widget_get_screen (widget); |
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473 | monitor = gdk_screen_get_monitor_at_window (gscreen, widget->window); |
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474 | gdk_screen_get_monitor_geometry (gscreen, monitor, &dest); |
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475 | |
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476 | draw_zoom_animation (gscreen, |
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477 | rect.x, rect.y, rect.width, rect.height, |
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478 | dest.x, dest.y, dest.width, dest.height, |
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479 | MINIATURIZE_ANIMATION_DELAY_Z); |
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480 | } |
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