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annotate default/static/common.js @ 78:d1741c2f3e9d

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js(common): renamed css.js to common.js has it will have generic functions not only for css manipulation.
author Goffi <goffi@goffi.org>
date Sat, 23 Dec 2017 21:37:08 +0100
parents default/static/css.js@3a9dae71aa6c
children caab77328b1c
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3a9dae71aa6c static (js/css): method to toggle clicked class on all elements matching a selector
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1 function toggle_clicked_class_tag(tag_name, class_name='clicked') {
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2 for (let elt of document.getElementsByTagName(tag_name)) {
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3 elt.classList.toggle(class_name);
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4 }
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5 }
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6
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7 function toggle_clicked_class_sel(selectors, class_name='clicked') {
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8 for (let elt of document.querySelectorAll(selectors)) {
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9 elt.classList.toggle(class_name);
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10 }
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11 }
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13 function set_clicked_class_id(trigger_elem_id, target_elem_id=null, class_name='clicked') {
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14 if (target_elem_id === null) { target_elem_id = trigger_elem_id; }
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15 document.getElementById(trigger_elem_id).addEventListener(
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16 "click",
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17 function() {
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18 document.getElementById(target_elem_id).classList.toggle(class_name);
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19 }
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20 );
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21 }
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22
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23 function get_elt(arg) {
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24 if (typeof arg === 'string') {
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25 // we should have an id
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26 return document.getElementById(arg);
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27 }
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28 else {
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29 // we should have an element
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30 return arg;
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31 }
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32 }
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34 function clicked_cls(elt) {
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35 /* toggle "clicked" class on each click, and remove "init" class if present */
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36 // init
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37 if (elt.classList.contains("init")) {
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38 elt.classList.remove("init");
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39 }
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40
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41 // clicked
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42 elt.classList.toggle("clicked");
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43 }
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44
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45 function clicked_mh_fix(arg) {
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46 /* toggle clicked, and fix max-height on transitionend
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47 *
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48 * needed to workaround transition issue with max-height:none
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49 *
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50 * inspired from https://css-tricks.com/using-css-transitions-auto-dimensions,
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51 * thanks to Brandon Smith */
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52 elt = get_elt(arg);
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53
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54 if (!elt.classList.contains("clicked")) {
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55 /* expand */
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56 var fix_expand = function(event) {
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57 elt.removeEventListener("transitionend", fix_expand, false);
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58 if (elt.classList.contains("clicked")) {
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59 /* if event is clicked quicker than transition time,
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60 * this callback can be called on reduce */
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61 elt.style.maxHeight = "none";
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62 }
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63 };
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64
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65 elt.setAttribute('max_height_init', elt.clientHeight);
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66 elt.addEventListener("transitionend", fix_expand, false);
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67 clicked_cls(elt);
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68 elt.style.maxHeight = elt.scrollHeight + 'px';
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69 }
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70 else {
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71 /* reduce */
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72 var transition_save = elt.style.transition;
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73 elt.style.transition = '';
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74 requestAnimationFrame(function() {
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75 elt.style.maxHeight = elt.scrollHeight + 'px';
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76 elt.style.transition = transition_save;
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77
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78 requestAnimationFrame(function() {
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79 elt.style.maxHeight = elt.getAttribute('max_height_init') + 'px';
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80 elt.removeAttribute('max_height_init');
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81 elt.style.maxHeight = null;
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82 });
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83 });
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84
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85 clicked_cls(elt);
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86 }
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87 }