82 lines
3.3 KiB
JavaScript
82 lines
3.3 KiB
JavaScript
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(function ($, Drupal, drupalSettings, debounce, displace) {
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"use strict";
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// autoResize option will turn off resizable and draggable.
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drupalSettings.dialog = $.extend({ autoResize: true, maxHeight: '95%' }, drupalSettings.dialog);
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/**
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* Resets the current options for positioning.
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*
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* This is used as a window resize and scroll callback to reposition the
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* jQuery UI dialog. Although not a built-in jQuery UI option, this can
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* be disabled by setting autoResize: false in the options array when creating
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* a new Drupal.dialog().
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*/
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function resetSize (event) {
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var positionOptions = ['width', 'height', 'minWidth', 'minHeight', 'maxHeight', 'maxWidth', 'position'];
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var adjustedOptions = {};
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var windowHeight = $(window).height();
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var option, optionValue, adjustedValue;
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for (var n = 0; n < positionOptions.length; n++) {
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option = positionOptions[n];
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optionValue = event.data.settings[option];
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if (optionValue) {
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// jQuery UI does not support percentages on heights, convert to pixels.
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if (typeof optionValue === 'string' && /%$/.test(optionValue) && /height/i.test(option)) {
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// Take offsets in account.
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windowHeight -= displace.offsets.top + displace.offsets.bottom;
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adjustedValue = parseInt(0.01 * parseInt(optionValue, 10) * windowHeight, 10);
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// Don't force the dialog to be bigger vertically than needed.
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if (option === 'height' && event.data.$element.parent().outerHeight() < adjustedValue) {
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adjustedValue = 'auto';
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}
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adjustedOptions[option] = adjustedValue;
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}
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}
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}
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// Offset the dialog center to be at the center of Drupal.displace.offsets.
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adjustedOptions = resetPosition(adjustedOptions);
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event.data.$element
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.dialog('option', adjustedOptions)
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.trigger('dialogContentResize');
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}
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/**
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* Position the dialog's center at the center of displace.offsets boundaries.
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*/
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function resetPosition (options) {
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var offsets = displace.offsets;
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var left = offsets.left - offsets.right;
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var top = offsets.top - offsets.bottom;
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var leftString = (left > 0 ? '+' : '-') + Math.abs(Math.round(left/2)) + 'px';
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var topString = (top > 0 ? '+' : '-') + Math.abs(Math.round(top/2)) + 'px';
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options.position = {
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my: 'center' + (left !== 0 ? leftString : '') + ' center' + (top !== 0 ? topString : '')
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};
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return options;
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}
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$(window).on({
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'dialog:aftercreate': function (event, dialog, $element, settings) {
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var autoResize = debounce(resetSize, 20);
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var eventData = { settings: settings, $element: $element };
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if (settings.autoResize === true || settings.autoResize === 'true') {
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$element
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.dialog('option', { resizable: false, draggable: false })
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.dialog('widget').css('position', 'fixed');
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$(window)
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.on('resize.dialogResize scroll.dialogResize', eventData, autoResize)
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.trigger('resize.dialogResize');
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$(document).on('drupalViewportOffsetChange', eventData, autoResize);
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}
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},
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'dialog:beforeclose': function (event, dialog, $element) {
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$(window).off('.dialogResize');
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}
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});
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// @todo remove window.parent once overlay is removed from core.
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})(jQuery, Drupal, drupalSettings, Drupal.debounce, window.parent.Drupal.displace);
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