mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-09-05 12:12:35 +00:00
112 lines
3.5 KiB
JavaScript
112 lines
3.5 KiB
JavaScript
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/*\
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title: $:/plugins/tiddlywiki/external-attachments/startup.js
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type: application/javascript
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module-type: startup
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Startup initialisation
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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var ENABLE_EXTERNAL_ATTACHMENTS_TITLE = "$:/config/ExternalAttachments/Enable",
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USE_ABSOLUTE_FOR_DESCENDENTS_TITLE = "$:/config/ExternalAttachments/UseAbsoluteForDescendents",
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USE_ABSOLUTE_FOR_NON_DESCENDENTS_TITLE = "$:/config/ExternalAttachments/UseAbsoluteForNonDescendents";
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// Export name and synchronous status
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exports.name = "external-attachments";
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exports.platforms = ["browser"];
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exports.after = ["startup"];
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exports.synchronous = true;
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exports.startup = function() {
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test_makePathRelative();
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$tw.hooks.addHook("th-importing-file",function(info) {
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if(document.location.protocol === "file:" && info.isBinary && info.file.path && $tw.wiki.getTiddlerText(ENABLE_EXTERNAL_ATTACHMENTS_TITLE,"") === "yes") {
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var locationPathParts = document.location.pathname.split("/").slice(0,-1),
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filePathParts = info.file.path.split(/[\\\/]/mg).map(encodeURIComponent);
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info.callback([
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{
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title: info.file.name,
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type: info.type,
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"_canonical_uri": makePathRelative(
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filePathParts.join("/"),
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locationPathParts.join("/"),
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{
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useAbsoluteForNonDescendents: $tw.wiki.getTiddlerText(USE_ABSOLUTE_FOR_NON_DESCENDENTS_TITLE,"") === "yes",
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useAbsoluteForDescendents: $tw.wiki.getTiddlerText(USE_ABSOLUTE_FOR_DESCENDENTS_TITLE,"") === "yes"
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}
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)
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}
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]);
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return true;
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} else {
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return false;
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}
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});
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};
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/*
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Given a source absolute path and a root absolute path, returns the source path expressed as a relative path from the root path.
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*/
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function makePathRelative(sourcepath,rootpath,options) {
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options = options || {};
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var sourceParts = sourcepath.split("/"),
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rootParts = rootpath.split("/"),
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outputParts = [];
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// Check that each path started with a slash
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if(sourceParts[0] || rootParts[0]) {
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throw "makePathRelative: both paths must be absolute";
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}
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// Identify any common portion from the start
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var c = 1,
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p;
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while(c < sourceParts.length && c < rootParts.length && sourceParts[c] === rootParts[c]) {
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c += 1;
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}
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// Return "." if there's nothing left
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if(c === sourceParts.length && c === rootParts.length ) {
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return "."
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}
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// Use an absolute path if required
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if((options.useAbsoluteForNonDescendents && c < rootParts.length) || (options.useAbsoluteForDescendents && c === rootParts.length)) {
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return sourcepath;
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}
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// Move up a directory for each directory left in the root
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for(p = c; p < rootParts.length; p++) {
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outputParts.push("..");
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}
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// Add on the remaining parts of the source path
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for(p = c; p < sourceParts.length; p++) {
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outputParts.push(sourceParts[p]);
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}
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return outputParts.join("/");
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}
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function test_makePathRelative() {
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var msg = "makePathRelative test failed";
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if(makePathRelative("/Users/me/something","/Users/you/something") !== "../../me/something") {
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throw msg;
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}
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if(makePathRelative("/Users/me/something","/Users/you/something",{useAbsoluteForNonDescendents: true}) !== "/Users/me/something") {
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throw msg;
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}
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if(makePathRelative("/Users/me/something/else","/Users/me/something") !== "else") {
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throw msg;
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}
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if(makePathRelative("/Users/me/something","/Users/me/something/new") !== "..") {
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throw msg;
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}
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if(makePathRelative("/Users/me/something","/Users/me/something/new",{useAbsoluteForNonDescendents: true}) !== "/Users/me/something") {
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throw msg;
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}
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if(makePathRelative("/Users/me/something","/Users/me/something") !== ".") {
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throw msg;
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}
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}
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})();
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