git.shemshak.org - ~bandali/configs/blob - vimperator/.vimperator/plugin/PDF.js.js

   1 /* NEW BSD LICENSE {{{
   2 Copyright (c) 2012, anekos.
   3 All rights reserved.
   4
   5 Redistribution and use in source and binary forms, with or without modification,
   6 are permitted provided that the following conditions are met:
   7
   8     1. Redistributions of source code must retain the above copyright notice,
   9        this list of conditions and the following disclaimer.
  10     2. Redistributions in binary form must reproduce the above copyright notice,
  11        this list of conditions and the following disclaimer in the documentation
  12        and/or other materials provided with the distribution.
  13     3. The names of the authors may not be used to endorse or promote products
  14        derived from this software without specific prior written permission.
  15
  16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  17 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19 IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  20 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  21 BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  23 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  25 THE POSSIBILITY OF SUCH DAMAGE.
  26
  27
  28 ###################################################################################
  29 # http://sourceforge.jp/projects/opensource/wiki/licenses%2Fnew_BSD_license       #
  30 # に参考になる日本語訳がありますが、有効なのは上記英文となります。                #
  31 ###################################################################################
  32
  33 }}} */
  34
  35 // INFO {{{
  36 let INFO = xml`
  37 <plugin name="PDF.js.js" version="1.0.0"
  38         href="http://vimpr.github.com/"
  39         summary="PDF.js controller."
  40         lang="en-US"
  41         xmlns="http://vimperator.org/namespaces/liberator">
  42   <author email="anekos@snca.net">anekos</author>
  43   <license>New BSD License</license>
  44   <project name="Vimperator" minVersion="3.0"/>
  45   <p></p>
  46   <item>
  47     <tags>:pdfjs-mapping-sample</tags>
  48     <description><p>mapping sample</p><code><![CDATA[
  49       nnoremap -urls ^\\.pdf$ i :<C-u>pdfjs index<Space>
  50       nnoremap -urls ^\\.pdf$ z :<C-u>pdfjs zoom<Space>
  51     ]]></code></description>
  52   </item>
  53 </plugin>`;
  54 // }}}
  55
  56 (function () {
  57
  58   let scrollCount = 1;
  59
  60   // Functions {{{
  61
  62   function getScrollHeight (count) {
  63     let base = content.innerHeight / 10;
  64     if (count > 0)
  65       scrollCount = count;
  66     return base  * scrollCount;
  67   }
  68
  69   function addMap (keys, desc, action) {
  70     mappings.addUserMap(
  71       [modes.NORMAL],
  72       keys,
  73       desc + ' - PDF.js.js',
  74       action,
  75       {
  76         count: true,
  77         matchingUrls: /\.pdf$/
  78       }
  79     );
  80   }
  81
  82   function getOutline () {
  83     return Array.slice(content.document.querySelector('#outlineView').querySelectorAll('.outlineItem > a'));
  84   }
  85
  86   function getOutlineLevel (node) {
  87     let level = 0;
  88     while (node && (node.getAttribute('id') != 'outlineView')) {
  89       node = node.parentNode;
  90       level++;
  91     }
  92     return node ? (level / 2): 0;
  93   }
  94
  95   function nSpace (level) {
  96     let res = '';
  97     for (i = 0; i < level; i++)
  98       res += '　';
  99     return res;
 100   }
 101
 102   // }}}
 103
 104   // Mappings {{{
 105
 106   addMap(
 107     ['j'],
 108     'Scroll Down',
 109     function (count) {
 110       content.document.querySelector('#viewerContainer').scrollTop += getScrollHeight(count);
 111     }
 112   );
 113
 114   addMap(
 115     ['k'],
 116     'Scroll up',
 117     function (count) {
 118       content.document.querySelector('#viewerContainer').scrollTop -= getScrollHeight(count);
 119     }
 120   );
 121
 122   addMap(
 123     ['n'],
 124     'Next page',
 125     function (count) {
 126       content.window.wrappedJSObject.PDFView.page += (count > 0 ? count : 1);
 127     }
 128   );
 129
 130   addMap(
 131     ['p'],
 132     'Previous page',
 133     function (count) {
 134       content.window.wrappedJSObject.PDFView.page -= (count > 0 ? count : 1);
 135     }
 136   );
 137
 138   addMap(
 139     ['gg'],
 140     'Go to page top or N page.',
 141     function (count) {
 142       if (count > 0)
 143         content.window.wrappedJSObject.PDFView.page = count;
 144       else
 145         content.window.wrappedJSObject.PDFView.page = 1;
 146     }
 147   );
 148
 149   addMap(
 150     ['zh'],
 151     'Fit to page.',
 152     function (count) {
 153       liberator.execute('pdfjs zoom page-fit');
 154     }
 155   );
 156
 157   addMap(
 158     ['zw'],
 159     'Fit to page to width.',
 160     function (count) {
 161       liberator.execute('pdfjs zoom page-width');
 162     }
 163   );
 164
 165   addMap(
 166     ['za'],
 167     'Fit to page to width.',
 168     function (count) {
 169       liberator.execute('pdfjs zoom auto');
 170     }
 171   );
 172
 173   addMap(
 174     ['zz'],
 175     'Fit to page to width.',
 176     function (count) {
 177       commandline.open('', 'pdfjs zoom ', modes.EX);
 178     }
 179   );
 180
 181   // }}}
 182
 183   commands.addUserCommand( // {{{
 184     ['pdfjs'],
 185     'PDF.js',
 186     function () void 'Meow is best',
 187     {
 188       subCommands: [
 189         new Command(
 190           ['i[ndex]'],
 191           'Jump page by index',
 192           function (args) {
 193             let index = args.literalArg.match(/^#(\d+)$/);
 194             if (index) {
 195               let os = getOutline();
 196               buffer.followLink(os[parseInt(index[1], 10)], liberator.CURRENT_TAB);
 197             } else {
 198               content.window.wrappedJSObject.PDFView.page = parseInt(args.literalArg, 10);
 199             }
 200           },
 201           {
 202             literal: 0,
 203             completer: function (context, args) {
 204               function desc (o) {
 205                 const PageRE = /#page=(\d+)\&/;
 206                 if (o.href && PageRE.test(o.href)) {
 207                   return `${nSpace(getOutlineLevel(o))} ${o.textContent} (p${o.href.match(PageRE)[1]})`;
 208                 } else {
 209                   return `${nSpace(getOutlineLevel(o))} ${o.textContent}`;
 210                 }
 211               }
 212
 213               let os = getOutline();
 214               context.compare = void 0;
 215               context.filters = [CompletionContext.Filter.textDescription];
 216               context.completions = [
 217                 [
 218                   '#' + i, desc(o)
 219                 ]
 220                 for ([i, o] in Iterator(os))
 221               ];
 222             }
 223           }
 224         ),
 225
 226         new Command(
 227           ['z[oom]'],
 228           'Zoom',
 229           function (args) {
 230             content.window.wrappedJSObject.PDFView.parseScale(args.literalArg);
 231           },
 232           {
 233             literal: 0,
 234             completer: function (context, args) {
 235               let os = Array.slice(content.document.querySelector('#scaleSelect').querySelectorAll('option'));
 236               context.completions = [
 237                 [o.value, o.textContent]
 238                 for ([, o] in Iterator(os))
 239               ];
 240             }
 241           }
 242         )
 243       ]
 244     },
 245     true
 246   ); // }}}
 247
 248 })();
 249
 250 // vim:sw=2 ts=2 et si fdm=marker: