|
| 1 | +require(['gitbook','jquery'],function(gitbook,$){ |
| 2 | +// Configuration |
| 3 | +varMAX_SIZE=4, |
| 4 | +MIN_SIZE=0, |
| 5 | +BUTTON_ID; |
| 6 | + |
| 7 | +// Current fontsettings state |
| 8 | +varfontState; |
| 9 | + |
| 10 | +// Default themes |
| 11 | +varTHEMES=[ |
| 12 | +{ |
| 13 | +config:'white', |
| 14 | +text:'White', |
| 15 | +id:0 |
| 16 | +}, |
| 17 | +{ |
| 18 | +config:'sepia', |
| 19 | +text:'Sepia', |
| 20 | +id:1 |
| 21 | +}, |
| 22 | +{ |
| 23 | +config:'night', |
| 24 | +text:'Night', |
| 25 | +id:2 |
| 26 | +} |
| 27 | +]; |
| 28 | + |
| 29 | +// Default font families |
| 30 | +varFAMILIES=[ |
| 31 | +{ |
| 32 | +config:'serif', |
| 33 | +text:'Serif', |
| 34 | +id:0 |
| 35 | +}, |
| 36 | +{ |
| 37 | +config:'sans', |
| 38 | +text:'Sans', |
| 39 | +id:1 |
| 40 | +} |
| 41 | +]; |
| 42 | + |
| 43 | +// Return configured themes |
| 44 | +functiongetThemes(){ |
| 45 | +returnTHEMES; |
| 46 | +} |
| 47 | + |
| 48 | +// Modify configured themes |
| 49 | +functionsetThemes(themes){ |
| 50 | +THEMES=themes; |
| 51 | +updateButtons(); |
| 52 | +} |
| 53 | + |
| 54 | +// Return configured font families |
| 55 | +functiongetFamilies(){ |
| 56 | +returnFAMILIES; |
| 57 | +} |
| 58 | + |
| 59 | +// Modify configured font families |
| 60 | +functionsetFamilies(families){ |
| 61 | +FAMILIES=families; |
| 62 | +updateButtons(); |
| 63 | +} |
| 64 | + |
| 65 | +// Save current font settings |
| 66 | +functionsaveFontSettings(){ |
| 67 | +gitbook.storage.set('fontState',fontState); |
| 68 | +update(); |
| 69 | +} |
| 70 | + |
| 71 | +// Increase font size |
| 72 | +functionenlargeFontSize(e){ |
| 73 | +e.preventDefault(); |
| 74 | +if(fontState.size>=MAX_SIZE)return; |
| 75 | + |
| 76 | +fontState.size++; |
| 77 | +saveFontSettings(); |
| 78 | +} |
| 79 | + |
| 80 | +// Decrease font size |
| 81 | +functionreduceFontSize(e){ |
| 82 | +e.preventDefault(); |
| 83 | +if(fontState.size<=MIN_SIZE)return; |
| 84 | + |
| 85 | +fontState.size--; |
| 86 | +saveFontSettings(); |
| 87 | +} |
| 88 | + |
| 89 | +// Change font family |
| 90 | +functionchangeFontFamily(configName,e){ |
| 91 | +if(e&&einstanceofEvent){ |
| 92 | +e.preventDefault(); |
| 93 | +} |
| 94 | + |
| 95 | +varfamilyId=getFontFamilyId(configName); |
| 96 | +fontState.family=familyId; |
| 97 | +saveFontSettings(); |
| 98 | +} |
| 99 | + |
| 100 | +// Change type of color theme |
| 101 | +functionchangeColorTheme(configName,e){ |
| 102 | +if(e&&einstanceofEvent){ |
| 103 | +e.preventDefault(); |
| 104 | +} |
| 105 | + |
| 106 | +var$book=gitbook.state.$book; |
| 107 | + |
| 108 | +// Remove currently applied color theme |
| 109 | +if(fontState.theme!==0) |
| 110 | +$book.removeClass('color-theme-'+fontState.theme); |
| 111 | + |
| 112 | +// Set new color theme |
| 113 | +varthemeId=getThemeId(configName); |
| 114 | +fontState.theme=themeId; |
| 115 | +if(fontState.theme!==0) |
| 116 | +$book.addClass('color-theme-'+fontState.theme); |
| 117 | + |
| 118 | +saveFontSettings(); |
| 119 | +} |
| 120 | + |
| 121 | +// Return the correct id for a font-family config key |
| 122 | +// Default to first font-family |
| 123 | +functiongetFontFamilyId(configName){ |
| 124 | +// Search for plugin configured font family |
| 125 | +varconfigFamily=$.grep(FAMILIES,function(family){ |
| 126 | +returnfamily.config==configName; |
| 127 | +})[0]; |
| 128 | +// Fallback to default font family |
| 129 | +return(!!configFamily)?configFamily.id :0; |
| 130 | +} |
| 131 | + |
| 132 | +// Return the correct id for a theme config key |
| 133 | +// Default to first theme |
| 134 | +functiongetThemeId(configName){ |
| 135 | +// Search for plugin configured theme |
| 136 | +varconfigTheme=$.grep(THEMES,function(theme){ |
| 137 | +returntheme.config==configName; |
| 138 | +})[0]; |
| 139 | +// Fallback to default theme |
| 140 | +return(!!configTheme)?configTheme.id :0; |
| 141 | +} |
| 142 | + |
| 143 | +functionupdate(){ |
| 144 | +var$book=gitbook.state.$book; |
| 145 | + |
| 146 | +$('.font-settings .font-family-list li').removeClass('active'); |
| 147 | +$('.font-settings .font-family-list li:nth-child('+(fontState.family+1)+')').addClass('active'); |
| 148 | + |
| 149 | +$book[0].className=$book[0].className.replace(/\bfont-\S+/g,''); |
| 150 | +$book.addClass('font-size-'+fontState.size); |
| 151 | +$book.addClass('font-family-'+fontState.family); |
| 152 | + |
| 153 | +if(fontState.theme!==0){ |
| 154 | +$book[0].className=$book[0].className.replace(/\bcolor-theme-\S+/g,''); |
| 155 | +$book.addClass('color-theme-'+fontState.theme); |
| 156 | +} |
| 157 | +} |
| 158 | + |
| 159 | +functioninit(config){ |
| 160 | +// Search for plugin configured font family |
| 161 | +varconfigFamily=getFontFamilyId(config.family), |
| 162 | +configTheme=getThemeId(config.theme); |
| 163 | + |
| 164 | +// Instantiate font state object |
| 165 | +fontState=gitbook.storage.get('fontState',{ |
| 166 | +size:config.size||2, |
| 167 | +family:configFamily, |
| 168 | +theme:configTheme |
| 169 | +}); |
| 170 | + |
| 171 | +update(); |
| 172 | +} |
| 173 | + |
| 174 | +functionupdateButtons(){ |
| 175 | +// Remove existing fontsettings buttons |
| 176 | +if(!!BUTTON_ID){ |
| 177 | +gitbook.toolbar.removeButton(BUTTON_ID); |
| 178 | +} |
| 179 | + |
| 180 | +// Create buttons in toolbar |
| 181 | +BUTTON_ID=gitbook.toolbar.createButton({ |
| 182 | +icon:'fa fa-font', |
| 183 | +label:'Font Settings', |
| 184 | +className:'font-settings', |
| 185 | +dropdown:[ |
| 186 | +[ |
| 187 | +{ |
| 188 | +text:'A', |
| 189 | +className:'font-reduce', |
| 190 | +onClick:reduceFontSize |
| 191 | +}, |
| 192 | +{ |
| 193 | +text:'A', |
| 194 | +className:'font-enlarge', |
| 195 | +onClick:enlargeFontSize |
| 196 | +} |
| 197 | +], |
| 198 | +$.map(FAMILIES,function(family){ |
| 199 | +family.onClick=function(e){ |
| 200 | +returnchangeFontFamily(family.config,e); |
| 201 | +}; |
| 202 | + |
| 203 | +returnfamily; |
| 204 | +}), |
| 205 | +$.map(THEMES,function(theme){ |
| 206 | +theme.onClick=function(e){ |
| 207 | +returnchangeColorTheme(theme.config,e); |
| 208 | +}; |
| 209 | + |
| 210 | +returntheme; |
| 211 | +}) |
| 212 | +] |
| 213 | +}); |
| 214 | +} |
| 215 | + |
| 216 | +// Init configuration at start |
| 217 | +gitbook.events.bind('start',function(e,config){ |
| 218 | +varopts=config.fontsettings; |
| 219 | + |
| 220 | +// Generate buttons at start |
| 221 | +updateButtons(); |
| 222 | + |
| 223 | +// Init current settings |
| 224 | +init(opts); |
| 225 | +}); |
| 226 | + |
| 227 | +// Expose API |
| 228 | +gitbook.fontsettings={ |
| 229 | +enlargeFontSize:enlargeFontSize, |
| 230 | +reduceFontSize:reduceFontSize, |
| 231 | +setTheme:changeColorTheme, |
| 232 | +setFamily:changeFontFamily, |
| 233 | +getThemes:getThemes, |
| 234 | +setThemes:setThemes, |
| 235 | +getFamilies:getFamilies, |
| 236 | +setFamilies:setFamilies |
| 237 | +}; |
| 238 | +}); |
| 239 | + |
| 240 | + |
