mirror of
https://github.com/AdaCore/aws.git
synced 2026-02-12 12:29:46 -08:00
2eefd2b8a1
When the user open a link in a webpage in a new tab, the original tab had is context modified. To avoid this, we should keep the old context and revert the last changes when a new tab creation is detected.
715 lines
20 KiB
Plaintext
715 lines
20 KiB
Plaintext
@@----------------------------------------------------------------------------
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@@-- Ada Web Server
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@@--
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@@-- Copyright (C) 2007-2008
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@@-- AdaCore
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@@--
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@@-- This library is free software; you can redistribute it and/or modify
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@@-- it under the terms of the GNU General Public License as published by
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@@-- the Free Software Foundation; either version 2 of the License, or (at
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@@-- your option) any later version.
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@@--
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@@-- This library is distributed in the hope that it will be useful, but
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@@-- WITHOUT ANY WARRANTY; without even the implied warranty of
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@@-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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@@-- General Public License for more details.
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@@--
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@@-- You should have received a copy of the GNU General Public License
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@@-- along with this library; if not, write to the Free Software Foundation,
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@@-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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@@--
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@@-- As a special exception, if other files instantiate generics from this
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@@-- unit, or you link this unit with other files to produce an executable,
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@@-- this unit does not by itself cause the resulting executable to be
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@@-- covered by the GNU General Public License. This exception does not
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@@-- however invalidate any other reasons why the executable file might be
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@@-- covered by the GNU Public License.
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@@----------------------------------------------------------------------------
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@@SET@@ AWS_CONTEXT_PER_WINDOW = true
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@@-- If the context should be renew on a new window (or tab) creation
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@@SET@@ CTX_WB = "CTX_WB"
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@@SET@@ CTX_OLD_WB = "CTX_OLD_WB"
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@@-- The context parameter name
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@@---------------------------------------------------------------- AWS
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var AWS = {
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Context : null,
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Ajax : null,
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Tools : null
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}
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@@---------------------------------------------------------------- TOOLS
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AWS.Tools = new function() {
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@@-----------
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@@-- PUBLIC
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@@-----------
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@@-- --------------------------------
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@@-- onload event to update CTX_WB
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this.addLoadEvent = function (func)
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{
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var oldonload = window.onload;
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if (typeof window.onload != 'function') {
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window.onload = func;
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} else {
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window.onload = function() { oldonload(); func(); }
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}
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}
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@@-- --------------------------------
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@@-- Used to report javascript errors
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this.report_error = function (request)
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{
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alert ('There was! an error on this Ajax request.');
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}
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@@-- Clear select content
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this.clearSelect = function (select_id)
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{
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while ($(select_id).length > 0) {
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$(select_id).remove(0);
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}
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}
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@@-- Delete a given option from the select
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this.delSelectOption = function (select_id, option)
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{
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var idx = 0;
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while (idx < $(select_id).length) {
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if ($(select_id).options[idx].value == option) {
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$(select_id).remove(idx);
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return;
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}
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idx = idx + 1;
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}
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}
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@@-- Add option_value/option_content into the given select
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this.addToSelect =
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function (select_id, option_value, option_content, option_class)
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{
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// Create a new option
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var new_option = document.createElement("option");
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new_option.value = option_value;
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new_option.className = option_class;
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var content = document.createTextNode(option_content);
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new_option.appendChild(content);
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// And add it to select
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$(select_id).appendChild(new_option);
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return new_option;
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}
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@@-- Select the given option from the select
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this.selectChangeSelected =
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function (select_id, option, hook_func, hook_param)
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{
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var idx = 0;
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while (idx < $(select_id).length) {
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if ($(select_id).options[idx].value == option) {
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$(select_id).selectedIndex = idx;
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if (hook_func != null && hook_func != "") {
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hook_func($(select_id).options[idx], hook_param);
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}
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return;
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}
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idx = idx + 1;
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}
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}
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}
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@@---------------------------------------------------------------- CONTEXT
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AWS.Context = new function() {
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@@-----------
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@@-- PUBLIC
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@@-----------
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@@-- --------------------------------
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@@-- Returns the context id
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this.get = function ()
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{
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var context = document.getElementById('@_CTX_WB_@');
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if (context == null)
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return "";
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else
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return $(context).innerHTML;
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}
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this.getold = function ()
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{
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var context = document.getElementById('@_CTX_OLD_WB_@');
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if (context == null)
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return "";
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else
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return $(context).innerHTML;
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}
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@@-- --------------------------------
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@@-- Update the context tag in anchors and forms
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this.update = function ()
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{
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@@IF@@ @_AWS_CONTEXT_PER_WINDOW_@ = true
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@@-- Check if context has to be renewed
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if (!is_new_context
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&& (!document.referrer || history.length == history_first)) {
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@@-- This is a new page in the browser
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@@-- Renew the context
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is_new_context = true;
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AWS.Ajax.XML.request
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("/xml_reset_context.xml?CTX_WB_COPY=true", "", AWS.Context.update);
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}
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@@END_IF@@
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var k = 0;
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@@-- anchors
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var anchors = document.getElementsBySelector('a');
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for (k=0; k<anchors.length; k++) {
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var href = anchors[k].getAttribute('href');
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if (href != null) {
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@@-- IE insists on returning the derived absolute URL,
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@@-- make sure that the ref is on the current page if the
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@@-- prefix is HTTP.
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if ((href.indexOf("http:",0) != 0
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|| href.indexOf(window.location.hostname) == 7)
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&& href.indexOf("mailto:",0) != 0
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&& href.indexOf("#",0) != 0) {
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anchors[k].setAttribute('href',
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AWS.Context.href_add_anchor(href));
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}
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}
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}
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@@-- forms
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var forms = document.getElementsBySelector('form');
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for (k=0; k<forms.length; k++) {
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var action = forms[k].getAttribute('action');
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if (action != null) {
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if (action != ""
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&& action.indexOf("http:",0) != 0
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&& action.indexOf("#", 0) != 0
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&& forms[k].getAttribute('onsubmit') == null) {
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add_context_to_form (forms[k]);
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}
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}
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}
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}
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@@-- --------------------------------
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@@-- Add Context parameter CTX_WB for Ajax
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this.add_ajax = function (pars)
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{
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if (pars == "")
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pars = pars + "?";
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else
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pars = pars + "&";
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pars = pars + "@_CTX_WB_@=" + this.get();
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pars = pars + "&@_CTX_OLD_WB_@=" + this.getold();
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return pars;
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}
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@@-- --------------------------------
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@@-- Add context parameter CTX_WB for anchors
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this.add_anchor = function (a)
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{
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a.href = this.href_add_anchor(a.href);
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}
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this.href_add_anchor = function (href)
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{
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var href_last = ""; // Contains fragment
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if (href.indexOf('#', 0) != -1) {
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var splitted_href = href.split('#');
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href = splitted_href[0];
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href_last = splitted_href[1];
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}
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// Remove CTX_WB if exists
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if (href.indexOf("@_CTX_WB_@", 0) != -1) {
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href = href.split("@_CTX_WB_@")[0];
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href = href.substr(0, href.length - 1); // Remove & or ?
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}
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if (href.indexOf("@_CTX_OLD_WB_@", 0) != -1) {
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href = href.split("@_CTX_OLD_WB_@")[0];
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href = href.substr(0, href.length - 1); // Remove & or ?
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}
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if (href.indexOf('?',0) == -1) {
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href = href + '?';
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} else {
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href = href + '&';
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}
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href = href + "@_CTX_WB_@=" + this.get();
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href = href + "&@_CTX_OLD_WB_@=" + this.getold();
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if (href_last != "") {
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href = href + "#" + href_last;
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}
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return (href);
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}
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@@------------
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@@-- PRIVATE
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@@------------
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@@-- --------------------------------
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@@-- Append or update context into form
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function add_context_to_form (form)
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{
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var k = 0;
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var items = form.elements;
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var found_context = false;
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var found_old_context = false;
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for (k=0; k<items.length; k++) {
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if (items[k].tagName == "INPUT"
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&& items[k].getAttribute('NAME') == '@_CTX_WB_@') {
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// Update context if needed
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if (items[k].getAttribute('VALUE') != AWS.Context.get()) {
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items[k].setAttribute ('VALUE', AWS.Context.get());
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}
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found_context = true;
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}
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if (items[k].tagName == "INPUT"
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&& items[k].getAttribute('NAME') == '@_CTX_OLD_WB_@') {
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// Update context if needed
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if (items[k].getAttribute('VALUE') != AWS.Context.getold()) {
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items[k].setAttribute ('VALUE', AWS.Context.getold());
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}
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found_old_context = true;
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}
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}
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// Insert new context field
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if (found_context) {
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hi = document.createElement('input');
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hi.setAttribute('type', 'hidden');
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hi.setAttribute('name', '@_CTX_WB_@');
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hi.setAttribute('value', AWS.Context.get());
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form.appendChild(hi);
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}
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if (found_old_context) {
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hi = document.createElement('input');
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hi.setAttribute('type', 'hidden');
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hi.setAttribute('name', '@_CTX_OLD_WB_@');
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hi.setAttribute('value', AWS.Context.getold());
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form.appendChild(hi);
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}
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}
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@@--
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is_msie = navigator.appName.indexOf("Microsoft") >= 0;
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var is_new_context = false;
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var history_first;
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if (is_msie) {
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history_first = 0;
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} else {
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history_first = 1;
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}
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}
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@@---------------------------------------------------------------- AJAX
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AWS.Ajax = new function() {
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@@-----------
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@@-- PUBLIC
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@@-----------
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this.XML = null;
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@@-- --------------------------------
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@@-- Update the behavior rules, needed when loading new section
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@@-- containing JavaScript code. Also update the CTX_WB.
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this.update_framework = function()
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{
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Behaviour.apply ();
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AWS.Context.update();
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}
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@@-- --------------------------------
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@@-- Call url?pars and put result into placeholder
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this.replace = function (url, pars, placeholder, oncomplete)
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{
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var rplaceholder = $(placeholder);
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if (rplaceholder.tagName == "TEXTAREA" ||
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rplaceholder.tagName == "INPUT")
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var O_ajax = new Ajax.Request
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(url,
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{method: 'get',
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parameters: AWS.Context.add_ajax(pars),
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onFailure: AWS.Tools.report_error,
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onComplete: function(req)
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{rplaceholder.value = req.responseText;
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if (oncomplete != "") oncomplete();}});
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else
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var O_ajax = new Ajax.Updater
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({success: placeholder},
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url,
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{method: 'get',
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parameters: AWS.Context.add_ajax(pars),
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onFailure: AWS.Tools.report_error,
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onComplete: function(req)
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{AWS.Ajax.update_framework();
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if (oncomplete != "") oncomplete();}});
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}
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@@-- --------------------------------
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@@-- Serialize a tag or all fields in a form
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this.serialize = function(elm, name) {
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var param = "";
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if ($(elm) == null) return "";
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if ($(elm).tagName == "FORM") {
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param = Form.serialize (elm);
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} else if ($(elm).tagName == "UL") {
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param = Sortable.serialize(elm);
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} else if (name == "" || name == null) {
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param = elm + "=" + $F(elm);
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} else {
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param = name + "=" + $F(elm);
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}
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return (param);
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}
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}
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AWS.Ajax.XML = new function() {
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@@-- --------------------------------
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@@-- Call url?pars and execute aws_xml_handler methods then the
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@@-- oncomplete method (to chain commands) if defined
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this.request = function (url, pars, oncomplete)
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{
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var myAjax = new Ajax.Request
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(url,
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{method: 'get',
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parameters: AWS.Context.add_ajax(pars),
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onFailure : AWS.Tools.report_error,
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onComplete : function(req)
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{AWS.Ajax.XML.handler(req);
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AWS.Ajax.update_framework();
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if (oncomplete != "") oncomplete();}});
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}
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@@-- Handle XML responses
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this.handler = function (result)
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{
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// get XML result
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var xml_result = result.responseXML;
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var response = xml_result.getElementsByTagName('response');
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var i = 0;
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for (i = 0; i < response[0].childNodes.length; i++) {
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var node = response[0].childNodes[i];
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if (node.nodeName == 'replace') {
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handler_replace (node);
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} else if (node.nodeName == 'clear') {
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handler_clear (node);
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} else if (node.nodeName == 'select') {
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handler_select (node);
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} else if (node.nodeName == 'radio') {
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handler_radio (node);
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} else if (node.nodeName == 'check') {
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handler_check (node);
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} else if (node.nodeName == 'get') {
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handler_get (node);
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} else if (node.nodeName == 'location') {
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handler_location (node);
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} else if (node.nodeName == 'refresh') {
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window.location.reload (true);
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} else if (node.nodeName == 'create_sortable') {
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handler_create_sortable (node);
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} else if (node.nodeName == 'destroy_sortable') {
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handler_destroy_sortable (node);
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} else if (node.nodeName == 'apply_style') {
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handler_apply_style (node);
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} else if (node.nodeName == 'insert_after') {
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handler_insert_after (node);
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}
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}
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}
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@@-- Replace a node content by an HTML String
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function handler_replace (node)
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{
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var placeholder_id = node.getAttribute("id");
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var placeholder_content;
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if ($(placeholder_id) == null) return;
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if (node.childNodes.length > 1) {
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placeholder_content = node.childNodes[1].nodeValue;
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} else {
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placeholder_content = node.firstChild.nodeValue;
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}
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if ($(placeholder_id).tagName == "TEXTAREA" ||
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$(placeholder_id).tagName == "INPUT") {
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$(placeholder_id).value = placeholder_content;
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} else {
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$(placeholder_id).innerHTML = placeholder_content;
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}
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AWS.Ajax.update_framework();
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}
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@@-- Clear a node
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function handler_clear (node)
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{
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var placeholder_id = node.getAttribute("id");
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if ($(placeholder_id).tagName == "TEXTAREA" ||
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$(placeholder_id).tagName == "INPUT") {
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$(placeholder_id).value = "";
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} else if ( $(placeholder_id).tagName == "IFRAME") {
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window.frames[placeholder_id].document.body.innerHTML="";
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} else {
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$(placeholder_id).innerHTML = "";
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}
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}
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@@-- Action on select : add, delete or select an option, or clear a select
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function handler_select (node)
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{
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var select_action = node.getAttribute("action");
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var select_id = node.getAttribute("id");
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if (select_action == "add") {
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var option_value = node.getAttribute("option_value");
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var option_content = node.getAttribute("option_content");
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AWS.Tools.addToSelect (select_id, option_value, option_content);
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} else if (select_action == "clear") {
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AWS.Tools.clearSelect (select_id);
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} else if (select_action == "delete") {
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var option_value = node.getAttribute("option_value");
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AWS.Tools.delSelectOption (select_id, option_value);
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} else if (select_action == "select") {
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var option_value = node.getAttribute("option_value");
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AWS.Tools.selectChangeSelected (select_id, option_value);
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}
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}
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@@-- Action on list : add an element
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function handler_insert_after (node)
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{
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var id = node.getAttribute('id');
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var placeholder_content;
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if (node.childNodes.length > 1) {
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placeholder_content = node.childNodes[1].nodeValue;
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} else {
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placeholder_content = node.firstChild.nodeValue;
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}
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new Insertion.After (id, placeholder_content);
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AWS.Ajax.update_framework();
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}
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@@-- Action on radio
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function handler_radio (node)
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{
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var action = node.getAttribute('action');
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var id = node.getAttribute('id');
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if (action == 'select') {
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$(id).checked = 1;
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}
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}
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|
|
|
@@-- Action on check
|
|
|
|
function handler_check (node)
|
|
{
|
|
var action = node.getAttribute('action');
|
|
var id = node.getAttribute('id');
|
|
if (action == 'select') {
|
|
$(id).checked = 1;
|
|
} else if (action == 'clear') {
|
|
$(id).checked = 0;
|
|
}
|
|
}
|
|
|
|
@@-- Action on get
|
|
|
|
function handler_get (node)
|
|
{
|
|
var url = node.getAttribute('url');
|
|
var pars = '';
|
|
var i = 0;
|
|
|
|
for (i = 0; i < node.childNodes.length; i++) {
|
|
var current_node = node.childNodes[i];
|
|
if (current_node.nodeName == 'parameters') {
|
|
if (pars != '') {
|
|
pars = pars + '&';
|
|
}
|
|
pars = pars + current_node.getAttribute('value');
|
|
} else if (current_node.nodeName == 'field') {
|
|
if (pars != '') {
|
|
pars = pars + '&';
|
|
}
|
|
var id = current_node.getAttribute('id');
|
|
pars = pars + AWS.Ajax.serialize (id);
|
|
}
|
|
}
|
|
AWS.Ajax.update_framework(); /* Update behaviour before request url */
|
|
AWS.Ajax.XML.request (url, pars, '');
|
|
}
|
|
|
|
@@-- Action on location
|
|
|
|
function handler_location (node)
|
|
{
|
|
var url = node.getAttribute('url');
|
|
|
|
if (url.indexOf('http',0) == -1 && url.indexOf('@_CTX_WB_@') == -1) {
|
|
@@-- pointing inside server and no context
|
|
if (url.indexOf("?",0) == -1)
|
|
url = url + '?';
|
|
else
|
|
url = url + '&';
|
|
|
|
url = url + "@_CTX_WB_@=" + AWS.Context.get();
|
|
url = url + "&@_CTX_OLD_WB_@=" + AWS.Context.getold();
|
|
|
|
}
|
|
|
|
/* Redirect to url */
|
|
document.location.href = url;
|
|
}
|
|
|
|
@@-- Action on create_sortable
|
|
|
|
function handler_create_sortable (node)
|
|
{
|
|
var lists = []; /* Get all list for containment */
|
|
|
|
var i = 0;
|
|
|
|
for (i = 0; i < node.childNodes.length; i++) {
|
|
var current_node = node.childNodes[i];
|
|
if (current_node.nodeName == 'list') {
|
|
lists.push (current_node.getAttribute('id'));
|
|
}
|
|
}
|
|
|
|
/* Call Sortable.create for each element */
|
|
|
|
for (i = 0; i < node.childNodes.length; i++) {
|
|
var current_node = node.childNodes[i];
|
|
if (current_node.nodeName == 'list') {
|
|
var id = current_node.getAttribute('id');
|
|
|
|
/* Add cursor style */
|
|
|
|
var elm = document.getElementById (id);
|
|
elm.style.cursor = 'move';
|
|
|
|
/* Create sortable */
|
|
|
|
Sortable.create
|
|
(id, { containment:lists, constraint:false, dropOnEmpty:true });
|
|
}
|
|
}
|
|
}
|
|
|
|
@@-- Action on destroy_sortable
|
|
|
|
function handler_destroy_sortable (node)
|
|
{
|
|
var i = 0;
|
|
|
|
/* Call Sortable.destroy for each element */
|
|
|
|
for (i = 0; i < node.childNodes.length; i++) {
|
|
var current_node = node.childNodes[i];
|
|
if (current_node.nodeName == 'list') {
|
|
var list_id = current_node.getAttribute('id');
|
|
|
|
/* Revert cursor style */
|
|
|
|
var elm = document.getElementById (list_id);
|
|
elm.style.cursor = 'default';
|
|
|
|
/* Destroy sortable */
|
|
Sortable.destroy (list_id);
|
|
}
|
|
}
|
|
}
|
|
|
|
@@-- Action on apply_style
|
|
|
|
function handler_apply_style (node)
|
|
{
|
|
var elm_id = node.getAttribute('id');
|
|
|
|
if ($(elm_id) == null) return;
|
|
|
|
var i = 0;
|
|
for (i = 0; i < node.childNodes.length; i++) {
|
|
var current_node = node.childNodes[i];
|
|
if (current_node.nodeName == 'attribute') {
|
|
var id = current_node.getAttribute('id');
|
|
var value = current_node.getAttribute('value');
|
|
$(elm_id).style[id] = value;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
@@-- INIT
|
|
|
|
AWS.Tools.addLoadEvent (AWS.Context.update);
|