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cache icons #4

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cache icons #4

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24 changes: 23 additions & 1 deletion src/LittleBigTable.js
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@ function littleBIGtable(settings) {
meta: {
loading: false,
status: null,
icons_cached: false,
},
// stores the parameters passed in query string
params: {
Expand All @@ -53,6 +54,27 @@ function littleBIGtable(settings) {
this.settings[i] = settings[i];
}
}

//cache icons
fetch(this.settings.icons).then(response => response.text()).then((iconssvgtext) => {

let parser = new DOMParser();
let icons = parser.parseFromString(iconssvgtext, 'image/svg+xml');

let wrapper = document.createElement('div');
wrapper.setAttribute('id', 'iconscache');
wrapper.style.display = 'none';
wrapper.insertAdjacentElement('afterbegin', icons.firstElementChild);

Array.prototype.map.call(wrapper.getElementsByTagName('symbol'),(el) =>{
el.setAttribute('id','cachedicon_'+el.getAttribute('id'))
});

document.body.insertAdjacentElement('beforeend', wrapper);

this.meta.icons_cached = true

});
// fetch data
this.fetch();
},
Expand Down Expand Up @@ -195,7 +217,7 @@ function littleBIGtable(settings) {
if (undefined !== this.sort[col]) {
icon = this.sort[col];
}
return '<svg class="icon"><use xlink:href="' + this.settings.icons + '#sort-' + icon + '"></use></svg>';
return '<svg class="icon"><use xlink:href="' + (this.meta.icons_cached ? '#cachedicon_' : (this.settings.icons+'#')) + 'sort-' + icon + '"></use></svg>';
},
// set the number of rows to show per page and saves preference in localStorage
// tries to keep the current rows on the page
Expand Down