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 #include "utils.h"
  33 #include "playlist.h"
  34
  35
  36 static void sidebar_class_init(void);
  37 static void sidebar_class_part_init (WidgetClass wc);
  38 static void sidebar_init(Widget request, Widget neww, ArgList args, Cardinal *num_args);
  39 static void sidebar_destroy(Widget widget);
  40 static void sidebar_resize(Widget widget);
  41 static void sidebar_realize(Widget widget, XtValueMask *mask, XSetWindowAttributes *attributes);
  42 static void sidebar_expose(Widget widget, XEvent *event, Region region);
  43 static Boolean sidebar_set_values(Widget old, Widget request, Widget neww, ArgList args, Cardinal *num_args);
  44 static void sidebar_insert_child(Widget child);
  45 Boolean sidebar_acceptfocus(Widget widget, Time *time);
  46 static void FocusInAP(Widget w, XEvent *event, String *args, Cardinal *nArgs);
  47
  48 static void xdndEnterAP(Widget w, XEvent *event, String *args, Cardinal *nArgs);
  49
  50 static void sidebar_xdnd_callback(Widget w, XtPointer udata, XtPointer cdata);
  51
  52
  53 static XtResource resources[] = {
  54
  55 };
  56
  57 static XtActionsRec actionslist[] = {
  58   {"focusIn", FocusInAP},
  59   {"xdnd_enter", xdndEnterAP},
  60   {"NULL", NULL}
  61 };
  62
  63 static char defaultTranslations[] = "<FocusIn>:                 focusIn()\n"
  64                                     "<Message>XdndEnter:    xdnd_enter()\n";
  65
  66
  67 static XtResource constraints[] = {};
  68
  69 SidebarClassRec sidebarWidgetClassRec = {
  70     // Core Class
  71     {
  72         (WidgetClass)&xmManagerClassRec,
  73         "XnSidebar",                         // class_name
  74         sizeof(SidebarRec),                  // widget_size
  75         sidebar_class_init,                  // class_initialize
  76         sidebar_class_part_init,             // class_part_initialize
  77         FALSE,                           // class_inited
  78         sidebar_init,                        // initialize
  79         NULL,                            // initialize_hook
  80         sidebar_realize,                     // realize
  81         actionslist,                     // actions
  82         XtNumber(actionslist),           // num_actions
  83         resources,                       // resources
  84         XtNumber(resources),             // num_resources
  85         NULLQUARK,                       // xrm_class
  86         True,                            // compress_motion
  87         True,                            // compress_exposure
  88         True,                            // compress_enterleave
  89         False,                           // visible_interest
  90         sidebar_destroy,                     // destroy
  91         sidebar_resize,                      // resize
  92         sidebar_expose,                 // expose
  93         sidebar_set_values,                  // set_values
  94         NULL,                            // set_values_hook
  95         XtInheritSetValuesAlmost,        // set_values_almost
  96         NULL,                            // get_values_hook
  97         sidebar_acceptfocus,                 // accept_focus
  98         XtVersion,                       // version
  99         NULL,                            // callback_offsets
 100         defaultTranslations,             // tm_table
 101         XtInheritQueryGeometry,          // query_geometry
 102         XtInheritDisplayAccelerator,     // display_accelerator
 103         NULL,                            // extension
 104     },
 105     // Composite Class
 106     {
 107         XtInheritGeometryManager, // geometry_manager
 108         XtInheritChangeManaged,   // change_managed
 109         sidebar_insert_child,         // insert_child
 110         XtInheritDeleteChild,     // delete_child
 111         NULL,                     // extension
 112     },
 113     // Constraint Class
 114     {
 115         constraints,                 // resources
 116         XtNumber(constraints),       // num_resources
 117         sizeof(XmFormConstraintRec), // constraint_size
 118         NULL,                        // initialize
 119         NULL,                        // destroy
 120         NULL,                        // set_value
 121         NULL,                        // extension
 122     },
 123     // XmManager Class
 124     {
 125         XtInheritTranslations, // translations
 126         NULL, // syn_resources
 127         0,    // num_syn_resources
 128         NULL, // syn_constraint_resources
 129         0,    // num_syn_constraint_resources
 130         XmInheritParentProcess, // parent_process
 131         NULL  // extension
 132     },
 133     // Sidebar Class
 134     {
 135         0
 136     }
 137 };
 138
 139 WidgetClass xnSidebarWidgetClass = (WidgetClass)&sidebarWidgetClassRec;
 140
 141
 142 static void sidebar_class_init(void) {
 143
 144 }
 145
 146 static void sidebar_class_part_init (WidgetClass wc) {
 147     SidebarClassRec *sidebarClass = (SidebarClassRec*)wc;
 148     XmManagerClassRec *managerClass = (XmManagerClassRec*)xmManagerWidgetClass;
 149
 150     sidebarClass->constraint_class.initialize = managerClass->constraint_class.initialize;
 151     sidebarClass->constraint_class.set_values = managerClass->constraint_class.set_values;
 152 }
 153
 154
 155
 156 static void sidebar_init(Widget request, Widget neww, ArgList args, Cardinal *num_args) {
 157     Sidebar sb = (Sidebar)neww;
 158
 159     XftColor fg, bg;
 160     fg.color.red = 0;
 161     fg.color.green = 0;
 162     fg.color.blue = 0;
 163     fg.color.alpha = 0xFFFF;
 164
 165     bg.color.red = 0xFFFF;
 166     bg.color.green = 0xFFFF;
 167     bg.color.blue = 0xFFFF;
 168     bg.color.alpha = 0xFFFF;
 169
 170     sb->sidebar.fg = fg;
 171     sb->sidebar.bg = bg;
 172
 173     sb->sidebar.font = FontFromName(XtDisplay(neww), "Sans:size=11");
 174     if(!sb->sidebar.font) {
 175         fprintf(stderr, "Cannot open font.\nAbort.\n");
 176         exit(-1);
 177     }
 178 }
 179
 180
 181
 182 static void sidebar_destroy(Widget widget) {
 183
 184 }
 185
 186 static void sidebar_resize(Widget widget) {
 187
 188 }
 189
 190 static int xdnd_initialized = 0;
 191
 192 static void sidebar_realize(Widget widget, XtValueMask *mask, XSetWindowAttributes *attributes) {
 193     (xmManagerClassRec.core_class.realize)(widget, mask, attributes);
 194
 195     if(!xdnd_initialized) {
 196         XdndInit(XtDisplay(widget), XtWidgetToApplicationContext(widget), sidebar_xdnd_callback, widget);
 197     }
 198     XdndEnable(widget);
 199
 200     Screen *screen = widget->core.screen;
 201     Visual *visual = screen->root_visual;
 202     for(int i=0;i<screen->ndepths;i++) {
 203         Depth d = screen->depths[i];
 204         if(d.depth == widget->core.depth) {
 205             visual = d.visuals;
 206             break;
 207         }
 208     }
 209
 210     Sidebar sb = (Sidebar)widget;
 211     sb->sidebar.d = XftDrawCreate(
 212             XtDisplay(widget),
 213             XtWindow(widget),
 214             visual,
 215             widget->core.colormap);
 216 }
 217
 218 static void sidebar_expose(Widget widget, XEvent *event, Region region) {
 219     printf("expose\n");
 220     Dimension w, h;
 221     XtMakeResizeRequest(widget, 200, 200, &w, &h);
 222
 223     Sidebar s = (Sidebar)widget;
 224
 225     XftDrawRect(s->sidebar.d, &s->sidebar.bg, 0, 0, s->core.width, s->core.height);
 226
 227     int height = 20;
 228
 229     printf("current track: %d\n", s->sidebar.window->playlist.current_track);
 230
 231     int i = 0;
 232     UCX_FOREACH(elm, s->sidebar.window->playlist.tracks) {
 233         char *name = util_resource_name(elm->data);
 234         XftColor *cg = &s->sidebar.fg;
 235         if(i == s->sidebar.window->playlist.current_track) {
 236             XftDrawRect(s->sidebar.d, &s->sidebar.fg, 0, i*height, s->core.width, height);
 237             cg = &s->sidebar.bg;
 238         }
 239
 240         XftDrawString8(s->sidebar.d, cg, s->sidebar.font->fonts->font, 10, i*height + 15, (const FcChar8*)name, strlen(name));
 241
 242         i++;
 243     }
 244 }
 245
 246 static Boolean sidebar_set_values(Widget old, Widget request, Widget neww, ArgList args, Cardinal *num_args) {
 247     Boolean r = False;
 248
 249     return r;
 250 }
 251
 252 static void sidebar_insert_child(Widget child) {
 253     (xmManagerClassRec.composite_class.insert_child)(child);
 254 }
 255
 256 Boolean sidebar_acceptfocus(Widget widget, Time *time) {
 257     return 0;
 258 }
 259
 260
 261 static void FocusInAP(Widget w, XEvent *event, String *args, Cardinal *nArgs) {
 262     printf("focusin\n");
 263     fflush(stdout);
 264 }
 265
 266 static void xdndEnterAP(Widget w, XEvent *event, String *args, Cardinal *nArgs) {
 267     printf("xdndEnterAP\n");
 268     fflush(stdout);
 269 }
 270
 271
 272
 273
 274 static void sidebar_xdnd_callback(Widget w, XtPointer udata, XtPointer cdata) {
 275     printf("xdnd\n");
 276     fflush(stdout);
 277
 278     Sidebar s = (Sidebar)cdata;
 279
 280     char *urilist = udata;
 281
 282     size_t len = strlen(urilist);
 283
 284     size_t start = 0;
 285     if(len > 7 && !memcmp(urilist, "file://", 7)) {
 286         start = 7;
 287     }
 288
 289     int err = 0;
 290
 291     // urldecode
 292     char *path = malloc(len + 1);
 293     int k = 0;
 294     for(int i=start;i<len;i++) {
 295         char c = urilist[i];
 296         if(c == '%') {
 297             if(i + 2 < len) {
 298                 char code[3];
 299                 code[0] = urilist[i+1];
 300                 code[1] = urilist[i+2];
 301                 code[2] = '\0';
 302
 303                 errno = 0;
 304                 char *end = NULL;
 305                 int ascii = (int)strtol(code, &end, 16);
 306                 if(errno == 0 && end == &code[2]) {
 307                     path[k] = ascii;
 308                     i += 2;
 309                 } else {
 310                     err = 1;
 311                     break;
 312                 }
 313             } else {
 314                 err = 1;
 315                 break;
 316             }
 317         } else if(c == '\n' || c == '\r') {
 318             break;
 319         } else {
 320             path[k] = c;
 321         }
 322
 323         k++;
 324     }
 325     path[k] = '\0';
 326
 327     PlayListAddFile(s->sidebar.window, path);
 328
 329     free(path);
 330 }
 331
 332
 333 /* --------------------------- public --------------------------- */
 334
 335 Widget CreateSidebar(
 336         Widget parent,
 337         String name,
 338         ArgList arglist,
 339         Cardinal argcount)
 340 {
 341     return XtCreateWidget(name, xnSidebarWidgetClass, parent, arglist, argcount);
 342 }
 343
 344 void SidebarSetWindow(Widget widget, MainWindow *win) {
 345     Sidebar sb = (Sidebar)widget;
 346     sb->sidebar.window = win;
 347 }