mirror of
https://github.com/AdaCore/aws.git
synced 2026-02-12 12:29:46 -08:00
30e53aaf68
Improve the websockets demo so that the websocket is not started on page load. This makes it easier to look at packets that are exchanged, without reloading the full javascript each time. Also change javascript so that new status do not replace the message on the page, but add to it (so that we can see "open" and "close", not just "close" for instance) L629-010
826 lines
22 KiB
Plaintext
826 lines
22 KiB
Plaintext
@@----------------------------------------------------------------------------
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@@-- Ada Web Server
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@@--
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@@-- Copyright (C) 2007-2012, 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 terms of the GNU General Public License as published by the
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@@-- Free Software Foundation; either version 3, or (at your option) any
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@@-- later version. This library is distributed in the hope that it will be
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@@-- useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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@@-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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@@--
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@@-- As a special exception under Section 7 of GPL version 3, you are
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@@-- granted additional permissions described in the GCC Runtime Library
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@@-- Exception, version 3.1, as published by the Free Software Foundation.
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@@--
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@@-- You should have received a copy of the GNU General Public License and
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@@-- a copy of the GCC Runtime Library Exception along with this program;
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@@-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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@@-- <http://www.gnu.org/licenses/>.
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@@--
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@@----------------------------------------------------------------------------
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@@SET@@ CTX_WB = "CTX_WB"
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@@-- The context parameter name
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@@SET@@ TIMEZONE_COOKIE = ""
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@@-- Set to empty string for no timezone support
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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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WebSocket : 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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@@IF@@ @_TIMEZONE_COOKIE_@ /= ""
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@@-- Use cookie to record that the timezone has been sent
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@@INCLUDE@@ cookies.js
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@@-- Handle Web Browser local timezone
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this.TZ_offset = new Date().getTimezoneOffset();
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this.setTimezone =
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function ()
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{
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if (readCookie ("@_TIMEZONE_COOKIE_@") == null) {
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createCookie ("@_TIMEZONE_COOKIE_@", this.TZ_offset, 1);
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}
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}
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@@END_IF@@
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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 $(context).innerHTML;
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}
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this.set = function (value)
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{
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var context = document.getElementById('@_CTX_WB_@');
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if (context == null)
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return;
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else
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$(context).innerHTML = value;
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this.update();
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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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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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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('?',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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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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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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}
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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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}
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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.responseXML);
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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.fromString = function (str)
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{
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var parser = new DOMParser();
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var doc = parser.parseFromString(str, "application/xml");
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AWS.Ajax.XML.handler(doc);
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}
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@@-- Handle XML responses
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this.handler = function (xml_actions)
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{
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var response = xml_actions.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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} else if (node.nodeName == 'ctx') {
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handler_ctx (node);
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} else if (node.nodeName == 'read_only') {
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handler_read_only (node);
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} else if (node.nodeName == 'disabled') {
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handler_disabled (node);
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} else if (node.nodeName == 'reset') {
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handler_reset (node);
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}
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}
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}
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@@-- Internal handler, replace current context in Web page
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function handler_ctx (node)
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{
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var cid = node.getAttribute("id");
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AWS.Context.set (cid);
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AWS.Ajax.update_framework();
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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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$(id).checked = 1;
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}
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}
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@@-- Action on check
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function handler_check (node)
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{
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var action = node.getAttribute('action');
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var id = node.getAttribute('id');
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if (action == 'select') {
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$(id).checked = 1;
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} else if (action == 'clear') {
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$(id).checked = 0;
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}
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}
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@@-- Action on get
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function handler_get (node)
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{
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var url = node.getAttribute('url');
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var pars = '';
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var i = 0;
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|
|
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
|
|
&& url[0] != '#')
|
|
{
|
|
@@-- pointing inside server and no context
|
|
if (url.indexOf("?",0) == -1)
|
|
url = url + '?';
|
|
else
|
|
url = url + '&';
|
|
|
|
url = url + "@_CTX_WB_@=" + AWS.Context.get();
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
}
|
|
}
|
|
|
|
@@-- Action on read_only
|
|
|
|
function handler_read_only (node)
|
|
{
|
|
var id = node.getAttribute('id');
|
|
var value = node.getAttribute('value');
|
|
|
|
if (value == 'true') {
|
|
$(id).readOnly = true;
|
|
} else if (value == 'false') {
|
|
$(id).readOnly = false;
|
|
}
|
|
}
|
|
|
|
@@-- Action on disabled
|
|
|
|
function handler_disabled (node)
|
|
{
|
|
var id = node.getAttribute('id');
|
|
var value = node.getAttribute('value');
|
|
|
|
if (value == 'true') {
|
|
$(id).disabled = true;
|
|
} else if (value == 'false') {
|
|
$(id).disabled = false;
|
|
}
|
|
}
|
|
|
|
@@-- Action on reset
|
|
|
|
function handler_reset (node)
|
|
{
|
|
var id = node.getAttribute('id');
|
|
$(id).reset();
|
|
}
|
|
}
|
|
|
|
@@---------------------------------------------------------------- TOOLS
|
|
|
|
AWS.WebSocket = new function() {
|
|
|
|
@@-----------
|
|
@@-- PUBLIC
|
|
@@-----------
|
|
|
|
@@-- --------------------------------
|
|
@@-- getTransport
|
|
|
|
this.getTransport = function (url)
|
|
{
|
|
return Try.these(
|
|
function() {return new WebSocket(url)},
|
|
function() {return new MozWebSocket(url)}
|
|
) || false;
|
|
}
|
|
|
|
this.open = function(url, message_id, status_id)
|
|
{
|
|
ws = AWS.WebSocket.getTransport(url);
|
|
|
|
if (ws == false) {
|
|
if (status_id != null) {
|
|
var a = document.getElementById(status_id);
|
|
a.innerHTML = a.innerHTML + '<br>Your browser does NOT support webSocket.';
|
|
}
|
|
return;
|
|
}
|
|
|
|
ws.onmessage = default_onmessage;
|
|
ws.onerror = default_onerror;
|
|
ws.onclose = default_onclose;
|
|
ws.onopen = default_onopen;
|
|
|
|
if (message_id != null)
|
|
ws.aws_message_id=message_id;
|
|
if (status_id != null)
|
|
ws.aws_status_id=status_id;
|
|
|
|
return ws;
|
|
}
|
|
|
|
function default_onmessage(e)
|
|
{
|
|
var data=e.data;
|
|
|
|
// if the first characters are an <response, let's pretends this is
|
|
// an AWS XML response. Parse using the AWS XML Ajax framework.
|
|
|
|
if (data.substring(0,5) == '<?xml')
|
|
AWS.Ajax.XML.fromString(data);
|
|
else if (this.aws_message_id != null) {
|
|
var a = document.getElementById(this.aws_message_id);
|
|
a.innerHTML = a.innerHTML + "<br>" + data;
|
|
}
|
|
}
|
|
|
|
function default_onopen(e)
|
|
{
|
|
if (this.aws_status_id != null) {
|
|
var a = document.getElementById(this.aws_status_id);
|
|
a.innerHTML = a.innerHTML + '<br>WebSocket now opened';
|
|
}
|
|
}
|
|
|
|
function default_onclose(e)
|
|
{
|
|
if (this.aws_status_id != null) {
|
|
var a = document.getElementById(this.aws_status_id);
|
|
a.innerHTML = a.innerHTML + '<br>WebSocket now closed';
|
|
}
|
|
}
|
|
|
|
function default_onerror(e)
|
|
{
|
|
if (this.aws_status_id != null) {
|
|
var a = document.getElementById(this.aws_status_id);
|
|
a.innerHTML = a.innerHTML + "<br>Error: " + e.data;
|
|
}
|
|
}
|
|
}
|
|
|
|
@@-- INIT
|
|
|
|
AWS.Tools.addLoadEvent (AWS.Context.update);
|
|
|
|
@@IF@@ @_TIMEZONE_COOKIE_@ /= ""
|
|
AWS.Tools.setTimezone();
|
|
@@END_IF@@
|