Open-ILS/web/js/dojo/openils/XUL.js

   1 if(!dojo._hasResource["openils.XUL"]) {
   2
   3     dojo.provide("openils.XUL");
   4     dojo.require('dojo.cookie');
   5     dojo.declare('openils.XUL', null, {});
   6
   7     openils.XUL.isXUL = function() {
   8         return Boolean(dojo.cookie('xul')) || Boolean(window.IAMXUL);
   9     }
  10
  11     openils.XUL.buildId = function() {
  12         return window.XUL_BUILD_ID || '';
  13     }
  14
  15     openils.XUL.getStash = function() {
  16         if(openils.XUL.isXUL()) {
  17             try {
  18                 if(openils.XUL.enableXPConnect()) {
  19                                 var CacheClass = new Components.Constructor("@mozilla.org/openils_data_cache;1", "nsIOpenILS");
  20                                 return new CacheClass().wrappedJSObject.OpenILS.prototype.data;
  21                 }
  22             } catch(e) {
  23                 console.log("Error loading XUL stash: " + e);
  24             }
  25         }
  26
  27         return {};
  28     }
  29
  30     openils.XUL.newTab = function(path, tabInfo, options) {
  31         if(xulG == undefined)
  32             throw new Error('xulG is not defined.  Cannot open tab');
  33         xulG.new_tab(path, tabInfo, options);
  34     }
  35
  36     openils.XUL.newTabEasy = function(url, tab_name, extra_content_params) {
  37         var content_params = {
  38             "session": openils.User.authtoken,
  39             "authtime": openils.User.authtime
  40         };
  41
  42         ["url_prefix", "new_tab", "set_tab", "close_tab", "new_patron_tab",
  43             "set_patron_tab", "volume_item_creator", "get_new_session",
  44             "holdings_maintenance_tab", "set_tab_name", "open_chrome_window",
  45             "url_prefix", "network_meter", "page_meter", "set_statusbar",
  46             "set_help_context"
  47         ].forEach(function(k) { content_params[k] = xulG[k]; });
  48
  49         if (extra_content_params)
  50             dojo.mixin(content_params, extra_content_params);
  51
  52         xulG.new_tab(
  53             xulG.url_prefix(url), {"tab_name": tab_name}, content_params
  54         );
  55     };
  56
  57     /**
  58      * @return bool True if a new session was successfully created, false otherwise.
  59      */
  60     openils.XUL.getNewSession = function(callback) {
  61         return xulG.get_new_session({callback : callback});
  62     }
  63
  64     /**
  65      * This can be used by privileged Firefox in addition to XUL.
  66      * To use use in Firefox directly, set signed.applets.codebase_principal_support to true in about:config
  67      */
  68     openils.XUL.enableXPConnect = function() {
  69         try {
  70             netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
  71         } catch (E) {
  72             if(dojo.isFF) {
  73                 console.error("Unable to enable UniversalXPConnect privileges.  " +
  74                     "Try setting 'signed.applets.codebase_principal_support' to true in about:config");
  75             }
  76             return false;
  77         }
  78         return true;
  79     }
  80
  81     /* This class cuts down on the obscenely long incantations needed to
  82      * use XPCOM components. */
  83     openils.XUL.SimpleXPCOM = function() {};
  84     openils.XUL.SimpleXPCOM.prototype = {
  85         "FP": {
  86             "iface": Components.interfaces.nsIFilePicker,
  87             "cls": "@mozilla.org/filepicker;1"
  88         },
  89         "FIS": {
  90             "iface": Components.interfaces.nsIFileInputStream,
  91             "cls": "@mozilla.org/network/file-input-stream;1"
  92         },
  93         "SIS": {
  94             "iface": Components.interfaces.nsIScriptableInputStream,
  95             "cls": "@mozilla.org/scriptableinputstream;1"
  96         },
  97         "FOS": {
  98             "iface": Components.interfaces.nsIFileOutputStream,
  99             "cls": "@mozilla.org/network/file-output-stream;1"
 100         },
 101         "create": function(key) {
 102             return Components.classes[this[key].cls].
 103                 createInstance(this[key].iface);
 104         },
 105         "getPrivilegeManager": function() {
 106             return netscape.security.PrivilegeManager;
 107         }
 108     };
 109
 110     openils.XUL.contentFromFileOpenDialog = function(windowTitle, sizeLimit) {
 111         var api = new openils.XUL.SimpleXPCOM();
 112
 113         /* The following enablePrivilege() call must happen at this exact
 114          * level of scope -- not wrapped in another function -- otherwise
 115          * it doesn't work. */
 116         api.getPrivilegeManager().enablePrivilege("UniversalXPConnect");
 117
 118         var picker = api.create("FP");
 119         picker.init(
 120             window, windowTitle || "Upload File", api.FP.iface.modeOpen
 121         );
 122         if (picker.show() == api.FP.iface.returnOK && picker.file) {
 123             var fis = api.create("FIS");
 124             var sis = api.create("SIS");
 125
 126             fis.init(picker.file, 1 /* MODE_RDONLY */, 0, 0);
 127             sis.init(fis);
 128
 129             return sis.read(sizeLimit || -1);
 130         } else {
 131             return null;
 132         }
 133     };
 134
 135     openils.XUL.contentToFileSaveDialog = function(content, windowTitle) {
 136         var api = new openils.XUL.SimpleXPCOM();
 137         api.getPrivilegeManager().enablePrivilege("UniversalXPConnect");
 138
 139         var picker = api.create("FP");
 140         picker.init(
 141             window, windowTitle || "Save File", api.FP.iface.modeSave
 142         );
 143         var result = picker.show();
 144         if (picker.file &&
 145                 (result == api.FP.iface.returnOK ||
 146                     result == api.FP.iface.returnReplace)) {
 147             if (!picker.file.exists())
 148                 picker.file.create(0, 0644); /* XXX hardcoded = bad */
 149             var fos = api.create("FOS");
 150             fos.init(picker.file, 42 /* WRONLY | CREAT | TRUNCATE */, 0644, 0);
 151             return fos.write(content, content.length);
 152         } else {
 153             return 0;
 154         }
 155     };
 156 }