moodle-mod_htmlcert/amd/src/rearrange-area.js

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// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* AMD module used when rearranging a custom certificate.
*
* @module mod_customcert/rearrange-area
* @package mod_customcert
* @copyright 2016 Mark Nelson <markn@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define(['jquery', 'core/yui', 'core/fragment', 'mod_customcert/dialogue', 'core/notification',
'core/str', 'core/templates', 'core/ajax'],
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function($, Y, fragment, Dialogue, notification, str, template, ajax) {
/**
* RearrangeArea class.
*
* @param {String} selector The rearrange PDF selector
*/
var RearrangeArea = function(selector) {
this._node = $(selector);
this._setEvents();
};
RearrangeArea.prototype.CUSTOMCERT_REF_POINT_TOPLEFT = 0;
RearrangeArea.prototype.CUSTOMCERT_REF_POINT_TOPCENTER = 1;
RearrangeArea.prototype.CUSTOMCERT_REF_POINT_TOPRIGHT = 2;
RearrangeArea.prototype.PIXELSINMM = 3.779527559055;
RearrangeArea.prototype._setEvents = function() {
this._node.on('click', '.element', this._editElement.bind(this));
};
RearrangeArea.prototype._editElement = function(event) {
var elementid = event.currentTarget.id.substr(8);
var contextid = this._node.attr('data-contextid');
var params = {
'elementid': elementid
};
fragment.loadFragment('mod_customcert', 'editelement', contextid, params).done(function(html, js) {
str.get_string('editelement', 'mod_customcert').done(function(title) {
Y.use('moodle-core-formchangechecker', function() {
new Dialogue(
title,
'<div id=\'elementcontent\'></div>',
this._editElementDialogueConfig.bind(this, elementid, html, js),
undefined,
true
);
}.bind(this));
}.bind(this));
}.bind(this)).fail(notification.exception);
};
RearrangeArea.prototype._editElementDialogueConfig = function(elementid, html, js, popup) {
// Place the content in the dialogue.
template.replaceNode('#elementcontent', html, js);
// We may have dragged the element changing it's position.
// Ensure the form has the current up-to-date location.
this._setPositionInForm(elementid);
// Add events for when we save, close and cancel the page.
var body = $(popup.getContent());
body.on('click', '#id_submitbutton', function(e) {
// Do not want to ask the user if they wish to stay on page after saving.
M.core_formchangechecker.reset_form_dirty_state();
// Save the data.
this._saveElement(elementid).then(function() {
// Update the DOM to reflect the adjusted value.
this._getElementHTML(elementid).done(function(html) {
var elementNode = this._node.find('#element-' + elementid);
var refpoint = parseInt($('#id_refpoint').val());
var refpointClass = '';
if (refpoint == this.CUSTOMCERT_REF_POINT_TOPLEFT) {
refpointClass = 'refpoint-left';
} else if (refpoint == this.CUSTOMCERT_REF_POINT_TOPCENTER) {
refpointClass = 'refpoint-center';
} else if (refpoint == this.CUSTOMCERT_REF_POINT_TOPRIGHT) {
refpointClass = 'refpoint-right';
}
elementNode.empty().append(html);
// Update the ref point.
elementNode.removeClass();
elementNode.addClass('element ' + refpointClass);
elementNode.attr('data-refpoint', refpoint);
// Move the element.
var posx = $('#editelementform #id_posx').val();
var posy = $('#editelementform #id_posy').val();
this._setPosition(elementid, refpoint, posx, posy);
// All done.
popup.close();
}.bind(this));
}.bind(this));
e.preventDefault();
}.bind(this));
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body.on('click', '#id_cancel', function(e) {
popup.close();
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e.preventDefault();
});
};
RearrangeArea.prototype._setPosition = function(elementid, refpoint, posx, posy) {
var element = Y.one('#element-' + elementid);
posx = Y.one('#pdf').getX() + posx * this.PIXELSINMM;
posy = Y.one('#pdf').getY() + posy * this.PIXELSINMM;
var nodewidth = parseFloat(element.getComputedStyle('width'));
var maxwidth = element.width * this.PIXELSINMM;
if (maxwidth && (nodewidth > maxwidth)) {
nodewidth = maxwidth;
}
switch (refpoint) {
case this.CUSTOMCERT_REF_POINT_TOPCENTER:
posx -= nodewidth / 2;
break;
case this.CUSTOMCERT_REF_POINT_TOPRIGHT:
posx = posx - nodewidth + 2;
break;
}
element.setX(posx);
element.setY(posy);
};
RearrangeArea.prototype._setPositionInForm = function(elementid) {
var posxelement = $('#editelementform #id_posx');
var posyelement = $('#editelementform #id_posy');
if (posxelement.length && posyelement.length) {
var element = Y.one('#element-' + elementid);
var posx = element.getX() - Y.one('#pdf').getX();
var posy = element.getY() - Y.one('#pdf').getY();
var refpoint = parseInt(element.getData('refpoint'));
var nodewidth = parseFloat(element.getComputedStyle('width'));
switch (refpoint) {
case this.CUSTOMCERT_REF_POINT_TOPCENTER:
posx += nodewidth / 2;
break;
case this.CUSTOMCERT_REF_POINT_TOPRIGHT:
posx += nodewidth;
break;
}
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posx = Math.round(parseFloat(posx / this.PIXELSINMM));
posy = Math.round(parseFloat(posy / this.PIXELSINMM));
posxelement.val(posx);
posyelement.val(posy);
}
};
RearrangeArea.prototype._getElementHTML = function(elementid) {
// Get the variables we need.
var templateid = this._node.attr('data-templateid');
// Call the web service to get the updated element.
var promises = ajax.call([{
methodname: 'mod_customcert_get_element_html',
args: {
templateid: templateid,
elementid: elementid
}
}]);
// Return the promise.
return promises[0];
};
RearrangeArea.prototype._saveElement = function(elementid) {
// Get the variables we need.
var templateid = this._node.attr('data-templateid');
var inputs = $('#editelementform').serializeArray();
// Call the web service to save the element.
var promises = ajax.call([{
methodname: 'mod_customcert_save_element',
args: {
templateid: templateid,
elementid: elementid,
values: inputs
}
}]);
// Return the promise.
return promises[0];
};
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return {
init: function(selector) {
new RearrangeArea(selector);
}
};
}
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);