mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-12-25 17:40:29 +00:00
94 lines
3.2 KiB
JavaScript
94 lines
3.2 KiB
JavaScript
/*\
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title: $:/plugins/tiddlywiki/dynaview/dynaview.js
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type: application/javascript
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module-type: startup
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Zoom everything
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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// Export name and synchronous status
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exports.name = "dynaview";
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exports.platforms = ["browser"];
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exports.after = ["render"];
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exports.synchronous = true;
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var isWaitingForAnimationFrame = false;
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exports.startup = function() {
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window.addEventListener("load",onScrollOrResize,false);
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window.addEventListener("scroll",onScrollOrResize,false);
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window.addEventListener("resize",onScrollOrResize,false);
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$tw.hooks.addHook("th-page-refreshed",function() {
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checkVisibility();
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});
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};
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function onScrollOrResize(event) {
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if(!isWaitingForAnimationFrame) {
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window.requestAnimationFrame(function() {
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setZoomClasses();
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checkVisibility();
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isWaitingForAnimationFrame = false;
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});
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}
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isWaitingForAnimationFrame = true;
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}
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function setZoomClasses() {
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var zoomFactor = document.body.scrollWidth / window.innerWidth,
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classList = document.body.classList;
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classList.add("tc-dynaview")
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classList.toggle("tc-dynaview-zoom-factor-1",zoomFactor <= 2);
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classList.toggle("tc-dynaview-zoom-factor-1-and-above",zoomFactor >= 1);
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classList.toggle("tc-dynaview-zoom-factor-1a-and-above",zoomFactor >= 1.14);
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classList.toggle("tc-dynaview-zoom-factor-1b-and-above",zoomFactor >= 1.33);
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classList.toggle("tc-dynaview-zoom-factor-1c-and-above",zoomFactor >= 1.6);
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classList.toggle("tc-dynaview-zoom-factor-2",zoomFactor >= 2 && zoomFactor <= 3);
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classList.toggle("tc-dynaview-zoom-factor-2-and-above",zoomFactor >= 2);
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classList.toggle("tc-dynaview-zoom-factor-2a-and-above",zoomFactor >= 2.66);
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classList.toggle("tc-dynaview-zoom-factor-3",zoomFactor >= 3 && zoomFactor <= 4);
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classList.toggle("tc-dynaview-zoom-factor-3-and-above",zoomFactor >= 3);
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classList.toggle("tc-dynaview-zoom-factor-4",zoomFactor >= 4);
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classList.toggle("tc-dynaview-zoom-factor-4-and-above",zoomFactor >= 4);
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}
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function checkVisibility() {
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var elements = document.querySelectorAll(".tc-dynaview-set-tiddler-when-visible");
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$tw.utils.each(elements,function(element) {
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// Check if the element is visible
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var elementRect = element.getBoundingClientRect(),
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viewportWidth = window.innerWidth || document.documentElement.clientWidth,
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viewportHeight = window.innerHeight || document.documentElement.clientHeight,
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viewportRect = {
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left: 0,
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right: viewportWidth,
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top: 0,
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bottom: viewportHeight
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};
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if(element.classList.contains("tc-dynaview-expand-viewport")) {
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viewportRect.left -= viewportWidth;
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viewportRect.right += viewportWidth;
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viewportRect.top -= viewportHeight;
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viewportRect.bottom += viewportHeight;
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}
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if(!(elementRect.left > viewportRect.right ||
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elementRect.right < viewportRect.left ||
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elementRect.top > viewportRect.bottom ||
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elementRect.bottom < viewportRect.top)) {
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// Set the tiddler value
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var tiddler = element.getAttribute("data-dynaview-set-tiddler"),
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value = element.getAttribute("data-dynaview-set-value") || "";
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if(tiddler && $tw.wiki.getTiddlerText(tiddler) !== value) {
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$tw.wiki.addTiddler(new $tw.Tiddler({title: tiddler, text: value}));
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}
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}
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});
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}
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})(); |