application/Sidebar.c

   1 /*
   2  * Copyright 2022 Olaf Wintermann
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  20  * DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #include "Sidebar.h"
  24 #include "SidebarP.h"
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include <errno.h>
  30
  31 #include "xdnd.h"
  32
  33
  34 static void sidebar_class_init(void);
  35 static void sidebar_class_part_init (WidgetClass wc);
  36 static void sidebar_init(Widget request, Widget neww, ArgList args, Cardinal *num_args);
  37 static void sidebar_destroy(Widget widget);
  38 static void sidebar_resize(Widget widget);
  39 static void sidebar_realize(Widget widget, XtValueMask *mask, XSetWindowAttributes *attributes);
  40 static void sidebar_expose(Widget widget, XEvent *event, Region region);
  41 static Boolean sidebar_set_values(Widget old, Widget request, Widget neww, ArgList args, Cardinal *num_args);
  42 static void sidebar_insert_child(Widget child);
  43 Boolean sidebar_acceptfocus(Widget widget, Time *time);
  44 static void FocusInAP(Widget w, XEvent *event, String *args, Cardinal *nArgs);
  45
  46 static void xdndEnterAP(Widget w, XEvent *event, String *args, Cardinal *nArgs);
  47
  48 static void sidebar_xdnd_callback(Widget w, XtPointer udata, XtPointer cdata);
  49
  50
  51 static XtResource resources[] = {
  52
  53 };
  54
  55 static XtActionsRec actionslist[] = {
  56   {"focusIn", FocusInAP},
  57   {"xdnd_enter", xdndEnterAP},
  58   {"NULL", NULL}
  59 };
  60
  61 static char defaultTranslations[] = "<FocusIn>:                 focusIn()\n"
  62                                     "<Message>XdndEnter:    xdnd_enter()\n";
  63
  64
  65 static XtResource constraints[] = {};
  66
  67 SidebarClassRec sidebarWidgetClassRec = {
  68     // Core Class
  69     {
  70         (WidgetClass)&xmManagerClassRec,
  71         "XnSidebar",                         // class_name
  72         sizeof(SidebarRec),                  // widget_size
  73         sidebar_class_init,                  // class_initialize
  74         sidebar_class_part_init,             // class_part_initialize
  75         FALSE,                           // class_inited
  76         sidebar_init,                        // initialize
  77         NULL,                            // initialize_hook
  78         sidebar_realize,                     // realize
  79         actionslist,                     // actions
  80         XtNumber(actionslist),           // num_actions
  81         resources,                       // resources
  82         XtNumber(resources),             // num_resources
  83         NULLQUARK,                       // xrm_class
  84         True,                            // compress_motion
  85         True,                            // compress_exposure
  86         True,                            // compress_enterleave
  87         False,                           // visible_interest
  88         sidebar_destroy,                     // destroy
  89         sidebar_resize,                      // resize
  90         sidebar_expose,                 // expose
  91         sidebar_set_values,                  // set_values
  92         NULL,                            // set_values_hook
  93         XtInheritSetValuesAlmost,        // set_values_almost
  94         NULL,                            // get_values_hook
  95         sidebar_acceptfocus,                 // accept_focus
  96         XtVersion,                       // version
  97         NULL,                            // callback_offsets
  98         defaultTranslations,             // tm_table
  99         XtInheritQueryGeometry,          // query_geometry
 100         XtInheritDisplayAccelerator,     // display_accelerator
 101         NULL,                            // extension
 102     },
 103     // Composite Class
 104     {
 105         XtInheritGeometryManager, // geometry_manager
 106         XtInheritChangeManaged,   // change_managed
 107         sidebar_insert_child,         // insert_child
 108         XtInheritDeleteChild,     // delete_child
 109         NULL,                     // extension
 110     },
 111     // Constraint Class
 112     {
 113         constraints,                 // resources
 114         XtNumber(constraints),       // num_resources
 115         sizeof(XmFormConstraintRec), // constraint_size
 116         NULL,                        // initialize
 117         NULL,                        // destroy
 118         NULL,                        // set_value
 119         NULL,                        // extension
 120     },
 121     // XmManager Class
 122     {
 123         XtInheritTranslations, // translations
 124         NULL, // syn_resources
 125         0,    // num_syn_resources
 126         NULL, // syn_constraint_resources
 127         0,    // num_syn_constraint_resources
 128         XmInheritParentProcess, // parent_process
 129         NULL  // extension
 130     },
 131     // Sidebar Class
 132     {
 133         0
 134     }
 135 };
 136
 137 WidgetClass xnSidebarWidgetClass = (WidgetClass)&sidebarWidgetClassRec;
 138
 139
 140 static void sidebar_class_init(void) {
 141
 142 }
 143
 144 static void sidebar_class_part_init (WidgetClass wc) {
 145     SidebarClassRec *sidebarClass = (SidebarClassRec*)wc;
 146     XmManagerClassRec *managerClass = (XmManagerClassRec*)xmManagerWidgetClass;
 147
 148     sidebarClass->constraint_class.initialize = managerClass->constraint_class.initialize;
 149     sidebarClass->constraint_class.set_values = managerClass->constraint_class.set_values;
 150 }
 151
 152
 153
 154 static void sidebar_init(Widget request, Widget neww, ArgList args, Cardinal *num_args) {
 155
 156 }
 157
 158
 159
 160 static void sidebar_destroy(Widget widget) {
 161
 162 }
 163
 164 static void sidebar_resize(Widget widget) {
 165
 166 }
 167
 168 static int xdnd_initialized = 0;
 169
 170 static void sidebar_realize(Widget widget, XtValueMask *mask, XSetWindowAttributes *attributes) {
 171     (xmManagerClassRec.core_class.realize)(widget, mask, attributes);
 172
 173     if(!xdnd_initialized) {
 174         XdndInit(XtDisplay(widget), XtWidgetToApplicationContext(widget), sidebar_xdnd_callback, widget);
 175     }
 176     XdndEnable(widget);
 177 }
 178
 179 static void sidebar_expose(Widget widget, XEvent *event, Region region) {
 180     printf("expose\n");
 181     Dimension w, h;
 182     XtMakeResizeRequest(widget, 200, 200, &w, &h);
 183 }
 184
 185 static Boolean sidebar_set_values(Widget old, Widget request, Widget neww, ArgList args, Cardinal *num_args) {
 186     Boolean r = False;
 187
 188     return r;
 189 }
 190
 191 static void sidebar_insert_child(Widget child) {
 192     (xmManagerClassRec.composite_class.insert_child)(child);
 193 }
 194
 195 Boolean sidebar_acceptfocus(Widget widget, Time *time) {
 196     return 0;
 197 }
 198
 199
 200 static void FocusInAP(Widget w, XEvent *event, String *args, Cardinal *nArgs) {
 201     printf("focusin\n");
 202     fflush(stdout);
 203 }
 204
 205 static void xdndEnterAP(Widget w, XEvent *event, String *args, Cardinal *nArgs) {
 206     printf("xdndEnterAP\n");
 207     fflush(stdout);
 208 }
 209
 210
 211
 212
 213 static void sidebar_xdnd_callback(Widget w, XtPointer udata, XtPointer cdata) {
 214     printf("xdnd\n");
 215     fflush(stdout);
 216
 217     char *urilist = udata;
 218
 219     size_t len = strlen(urilist);
 220
 221     size_t start = 0;
 222     if(len > 7 && !memcmp(urilist, "file://", 7)) {
 223         start = 7;
 224     }
 225
 226     int err = 0;
 227
 228     // urldecode
 229     char *path = malloc(len + 1);
 230     int k = 0;
 231     for(int i=start;i<len;i++) {
 232         char c = urilist[i];
 233         if(c == '%') {
 234             if(i + 2 < len) {
 235                 char code[3];
 236                 code[0] = urilist[i+1];
 237                 code[1] = urilist[i+2];
 238                 code[2] = '\0';
 239
 240                 errno = 0;
 241                 char *end = NULL;
 242                 int ascii = (int)strtol(code, &end, 16);
 243                 if(errno == 0 && end == &code[2]) {
 244                     path[k] = ascii;
 245                     i += 2;
 246                 } else {
 247                     err = 1;
 248                     break;
 249                 }
 250             } else {
 251                 err = 1;
 252                 break;
 253             }
 254         } else if(c == '\n' || c == '\r') {
 255             break;
 256         } else {
 257             path[k] = c;
 258         }
 259
 260         k++;
 261     }
 262     path[k] = '\0';
 263
 264     // add file
 265     // TODO
 266
 267     free(path);
 268 }
 269
 270
 271 /* --------------------------- public --------------------------- */
 272
 273 Widget CreateSidebar(
 274         Widget parent,
 275         String name,
 276         ArgList arglist,
 277         Cardinal argcount)
 278 {
 279     return XtCreateWidget(name, xnSidebarWidgetClass, parent, arglist, argcount);
 280 }