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Overview
Comment:Improvements to handling of the cookie for "sticky" display settings.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | sticky-timeline-style
Files: files | file ages | folders
SHA3-256: 3ec843970d10dc705150b76e9c2db4f8044504467c2d4317d71b492c4fd2d825
User & Date: drh 2017-11-28 22:16:32
Context
2017-11-29
02:20
Fixes to the cookie handler. Simpler class structure on timelines. (check-in: 92af2148 user: drh tags: sticky-timeline-style)
2017-11-28
22:16
Improvements to handling of the cookie for "sticky" display settings. (check-in: 3ec84397 user: drh tags: sticky-timeline-style)
21:43
Change the style selector query parameter on /timeline to "ss". Other code cleanup. The new style selector is working, but needs default CSS. (check-in: f64fa4f1 user: drh tags: sticky-timeline-style)
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/cookies.c. 

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**    web page.  This routine is a destructor for this module and should
**    be called once.
*/
#include "cookies.h"
#include <assert.h>
#include <string.h>







/*
** State information private to this module
*/
#define COOKIE_NPARAM  10
static struct {
  const char *zCookieName;    /* name of the user preferences cookie */
................................................................................
    }
    cookies.nParam++;
  }
}

#define COOKIE_READ  1
#define COOKIE_WRITE 2
static void cookie_readwrite(const char *zQP, const char *zPName, int flags){





  const char *zQVal = P(zQP);
  int i;
  assert( cookies.zCookieName!=0 );
  for(i=0; i<cookies.nParam && strcmp(zPName,cookies.aParam[i].zPName); i++){}
  if( (flags & COOKIE_READ)!=0 && zQVal==0 && i<cookies.nParam ){
    cgi_set_parameter_nocopy(zQP, cookies.aParam[i].zPValue, 1);
    return;
  }

  if( (flags & COOKIE_WRITE)!=0
   && i<COOKIE_NPARAM
   && (i==cookies.nParam || strcmp(zQVal, cookies.aParam[i].zPValue))
  ){
    if( i==cookies.nParam ){
      cookies.aParam[i].zPName = zPName;
      cookies.nParam++;
................................................................................
  }
}

/* If query parameter zQP is missing, initialize it using the zPName
** value from the user preferences cookie
*/
void cookie_read_parameter(const char *zQP, const char *zPName){
  cookie_readwrite(zQP, zPName, COOKIE_READ);
}

/* Update the zPName value of the user preference cookie to match
** the value of query parameter zQP.
*/
void cookie_write_parameter(const char *zQP, const char *zPName){




  cookie_readwrite(zQP, zPName, COOKIE_WRITE);
}

/* Use the zPName user preference value as a default for zQP and record
** any changes to the zQP value back into the cookie.
*/
void cookie_link_parameter(const char *zQP, const char *zPName){




  cookie_readwrite(zQP, zPName, COOKIE_READ|COOKIE_WRITE);
}

/* Update the user preferences cookie, if necessary, and shut down this
** module
*/
void cookie_render(void){
  assert( cookies.zCookieName!=0 );
................................................................................
** WEBPAGE:  cookies
**
** Show the current display settings contained in the
** "fossil_display_settings" cookie.
*/
void cookie_page(void){
  int i;
  cookie_parse("fossil_display_settings");




  style_header("User Preference Cookie Values");



  @ <p>The following are user preference settings held in the
  @ "fossil_display_settings" cookie.
  @ <ul>
  @ <li>Raw cookie value: "%h(PD("fossil_display_settings",""))"
  for(i=0; i<cookies.nParam; i++){
    @ <li>%h(cookies.aParam[i].zPName): "%h(cookies.aParam[i].zPValue)"
  }
  @ </ul>
  style_footer();
}








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**    web page.  This routine is a destructor for this module and should
**    be called once.
*/
#include "cookies.h"
#include <assert.h>
#include <string.h>

#if INTERFACE
/* the standard name of the display settings cookie for fossil */
# define DISPLAY_SETTINGS_COOKIE    "fossil_display_settings"
#endif


/*
** State information private to this module
*/
#define COOKIE_NPARAM  10
static struct {
  const char *zCookieName;    /* name of the user preferences cookie */
................................................................................
    }
    cookies.nParam++;
  }
}

#define COOKIE_READ  1
#define COOKIE_WRITE 2
static void cookie_readwrite(
  const char *zQP,        /* Name of the query parameter */
  const char *zPName,     /* Name of the cooking setting */
  const char *zDflt,      /* Default value for the query parameter */
  int flags               /* READ or WRITE or both */
){
  const char *zQVal = P(zQP);
  int i;
  assert( cookies.zCookieName!=0 );
  for(i=0; i<cookies.nParam && strcmp(zPName,cookies.aParam[i].zPName); i++){}
  if( zQVal==0 && (flags & COOKIE_READ)!=0 && i<cookies.nParam ){
    cgi_set_parameter_nocopy(zQP, cookies.aParam[i].zPValue, 1);
    return;
  }
  if( zQVal==0 ) zQVal = zDflt;
  if( (flags & COOKIE_WRITE)!=0
   && i<COOKIE_NPARAM
   && (i==cookies.nParam || strcmp(zQVal, cookies.aParam[i].zPValue))
  ){
    if( i==cookies.nParam ){
      cookies.aParam[i].zPName = zPName;
      cookies.nParam++;
................................................................................
  }
}

/* If query parameter zQP is missing, initialize it using the zPName
** value from the user preferences cookie
*/
void cookie_read_parameter(const char *zQP, const char *zPName){
  cookie_readwrite(zQP, zPName, 0, COOKIE_READ);
}

/* Update the zPName value of the user preference cookie to match
** the value of query parameter zQP.
*/
void cookie_write_parameter(
  const char *zQP,
  const char *zPName,
  const char *zDflt
){
  cookie_readwrite(zQP, zPName, zDflt, COOKIE_WRITE);
}

/* Use the zPName user preference value as a default for zQP and record
** any changes to the zQP value back into the cookie.
*/
void cookie_link_parameter(
  const char *zQP,       /* The query parameter */
  const char *zPName,    /* The name of the cookie value */
  const char *zDflt      /* Default value for the parameter */
){
  cookie_readwrite(zQP, zPName, zDflt, COOKIE_READ|COOKIE_WRITE);
}

/* Update the user preferences cookie, if necessary, and shut down this
** module
*/
void cookie_render(void){
  assert( cookies.zCookieName!=0 );
................................................................................
** WEBPAGE:  cookies
**
** Show the current display settings contained in the
** "fossil_display_settings" cookie.
*/
void cookie_page(void){
  int i;
  if( PB("clear") ){
    cgi_set_cookie(DISPLAY_SETTINGS_COOKIE, "", 0, 1);
    cgi_replace_parameter(DISPLAY_SETTINGS_COOKIE, "");
  }
  cookie_parse(DISPLAY_SETTINGS_COOKIE);
  style_header("User Preference Cookie Values");
  if( cookies.nParam ){
    style_submenu_element("Clear", "%R/cookies?clear");
  }
  @ <p>The following are user preference settings held in the
  @ "fossil_display_settings" cookie.
  @ <ul>
  @ <li>Raw cookie value: "%h(PD("fossil_display_settings",""))"
  for(i=0; i<cookies.nParam; i++){
    @ <li>%h(cookies.aParam[i].zPName): "%h(cookies.aParam[i].zPValue)"
  }
  @ </ul>
  style_footer();
}

Changes to src/timeline.c. 

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     "n", "Normal",
     "c", "Compact",
     "d", "Detailed",
     "j", "Columnar",
  };

  /* Set number of rows to display */
  cookie_parse("fossil_display_settings");
  cookie_link_parameter("n","n");
  z = P("n");
  if( z==0 ) z = db_get("timeline-default-length",0);
  if( z ){
    if( fossil_strcmp(z,"all")==0 ){
      nEntry = 0;
    }else{
      nEntry = atoi(z);
................................................................................
        nEntry = 10;
      }
    }
  }else{
    cgi_replace_query_parameter("n","50");
    nEntry = 50;
  }

  cookie_link_parameter("ss","ss");
  cViewStyle = PD("ss","n")[0];
  style_submenu_multichoice("ss", 4, azViewStyles, 0);
  

  /* To view the timeline, must have permission to read project data.
  */
  pd_rid = name_to_typed_rid(P("dp"),"ci");
................................................................................
  cookie_read_parameter("y","y");
  zType = P("y");
  if( zType==0 ){
    zType = g.perm.Read ? "ci" : "all";
    cgi_set_parameter("y", zType);
  }
  if( zType[0]=='a' || zType[0]=='c' ){
    cookie_write_parameter("y","y");
  }
  cookie_render();
  url_initialize(&url, "timeline");
  cgi_query_parameters_to_url(&url);

  /* Convert r=TAG to t=TAG&rel. */
  if( zBrName && !related ){








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     "n", "Normal",
     "c", "Compact",
     "d", "Detailed",
     "j", "Columnar",
  };

  /* Set number of rows to display */
  cookie_parse(DISPLAY_SETTINGS_COOKIE);
  cookie_read_parameter("n","n");
  z = P("n");
  if( z==0 ) z = db_get("timeline-default-length",0);
  if( z ){
    if( fossil_strcmp(z,"all")==0 ){
      nEntry = 0;
    }else{
      nEntry = atoi(z);
................................................................................
        nEntry = 10;
      }
    }
  }else{
    cgi_replace_query_parameter("n","50");
    nEntry = 50;
  }
  cookie_write_parameter("n","n",0);
  cookie_link_parameter("ss","ss","n");
  cViewStyle = PD("ss","n")[0];
  style_submenu_multichoice("ss", 4, azViewStyles, 0);
  

  /* To view the timeline, must have permission to read project data.
  */
  pd_rid = name_to_typed_rid(P("dp"),"ci");
................................................................................
  cookie_read_parameter("y","y");
  zType = P("y");
  if( zType==0 ){
    zType = g.perm.Read ? "ci" : "all";
    cgi_set_parameter("y", zType);
  }
  if( zType[0]=='a' || zType[0]=='c' ){
    cookie_write_parameter("y","y",zType);
  }
  cookie_render();
  url_initialize(&url, "timeline");
  cgi_query_parameters_to_url(&url);

  /* Convert r=TAG to t=TAG&rel. */
  if( zBrName && !related ){

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